7 Signs Your Blood Sugar May Be Too High

High blood sugar, medically known as hyperglycemia, is a common problem that can develop gradually. Some people notice clear symptoms, while others can have elevated blood glucose for months or even years without realizing it.

This is especially important with prediabetes and type 2 diabetes, because early blood sugar problems may not cause dramatic warning signs.

Blood glucose is essential for life. It provides energy to your brain, muscles and other tissues. After you eat, carbohydrates are broken down into glucose, which enters your bloodstream. Insulin, a hormone produced by the pancreas, helps glucose move from the blood into cells.

When the body does not make enough insulin, does not respond properly to insulin, or both, glucose can remain in the bloodstream.

Over time, persistently elevated blood sugar can affect blood vessels, nerves, kidneys, eyes and other organs.

The encouraging news is that abnormal blood sugar can be detected through testing, and appropriate lifestyle changes and medical treatment can significantly reduce the risk of complications.

Here are 7 signs your blood sugar may be too high, followed by other important symptoms, risk factors, testing information and practical steps you can take.

Important: These symptoms can have many different causes. Having one or more does not prove that you have diabetes. Blood glucose testing and medical evaluation are needed for diagnosis.

1. You Are Extremely Thirsty

One of the classic symptoms associated with high blood sugar is unusual or persistent thirst.

Your kidneys normally filter glucose from your blood and return most of it to the bloodstream.

But when blood glucose becomes sufficiently high, the kidneys may begin excreting excess glucose into the urine.

Glucose pulls water along with it.

As a result, you may lose more fluid than usual.

Your body responds by making you thirsty.

This can create a cycle:

High blood sugar → excess glucose in urine → increased urination → fluid loss → increased thirst.

You might find yourself drinking much more water than usual or feeling thirsty shortly after drinking.

Is thirst always caused by high blood sugar?

No.

Thirst is a normal response to dehydration. Hot weather, exercise, sweating, salty meals, fever and inadequate fluid intake can all make you thirsty.

Certain medications and medical conditions can also increase thirst.

The symptom becomes more concerning when it is persistent and occurs together with frequent urination or other symptoms of hyperglycemia.

If you suddenly become much thirstier than usual and cannot explain why, consider discussing it with a healthcare professional.

2. You Are Urinating More Often

Frequent urination is closely connected to excessive thirst.

When blood glucose becomes high enough, the kidneys attempt to remove some of the excess glucose through urine.

Because glucose attracts water, the amount of urine produced can increase.

You may notice:

• Going to the bathroom much more frequently
• Producing larger amounts of urine
• Waking up repeatedly during the night
• Feeling thirsty after urinating
• Drinking more fluids because of increased thirst

Why nighttime urination matters

Occasionally waking up to use the bathroom is common, particularly as people get older.

But a new pattern of repeatedly waking several times every night to urinate may deserve attention.

High blood sugar is one possible cause, but it is not the only one.

Other causes include urinary problems, medications, excessive evening fluid intake and other medical conditions.

If frequent urination persists, a healthcare professional can determine whether glucose testing or another evaluation is appropriate.

3. You Feel Tired or Weak

Persistent fatigue can sometimes accompany high blood sugar.

This can seem confusing because glucose is the body’s main energy source.

The issue is that having glucose in your bloodstream does not necessarily mean your cells are able to use it efficiently.

Insulin helps glucose enter many cells.

When insulin is insufficient or the body’s tissues become resistant to insulin, glucose can remain in the bloodstream instead of being efficiently used by cells.

This can contribute to:

• Low energy
• Weakness
• Difficulty concentrating
• Feeling sluggish
• Reduced exercise tolerance
• Feeling tired despite sleeping

However, fatigue is one of the most common symptoms in medicine.

Poor sleep, stress, anemia, thyroid problems, infections, nutritional deficiencies, medications and many other conditions can cause tiredness.

Therefore, fatigue alone cannot tell you that your blood sugar is high.

It becomes more meaningful when it appears together with other symptoms such as increased thirst, frequent urination or unexplained weight changes.

4. Your Vision Becomes Blurry

High blood glucose can sometimes cause temporary changes in vision.

When blood glucose changes significantly, fluid levels in and around the lens of the eye can change. This may temporarily affect the eye’s ability to focus.

You may notice that:

• Words appear less sharp
• Reading becomes more difficult
• Objects look slightly out of focus
• Your vision seems different from one day to another

These changes may improve when glucose levels return toward the usual range.

But there is another important reason people with diabetes need regular eye care.

Long-term high blood sugar can damage small blood vessels in the retina, resulting in diabetic retinopathy.

Diabetic retinopathy can progress without obvious symptoms during its early stages.

That’s why people with diabetes should follow recommended eye-screening schedules even when their vision appears normal.

When is blurry vision urgent?

Sudden vision loss or a major sudden change in vision should not simply be blamed on blood sugar.

Seek urgent medical attention for symptoms such as:

• Sudden loss of vision
• A curtain or shadow across your vision
• A sudden large increase in floaters
• Flashes of light
• Severe eye pain

5. Cuts and Wounds Take Longer to Heal

Persistently elevated blood sugar can interfere with the body’s ability to heal injuries effectively.

Wound healing requires adequate blood flow, immune function and tissue repair.

Long-term diabetes can affect blood vessels and nerves and can interfere with immune responses.

As a result, a small cut or blister may take longer to heal.

This is particularly important when wounds occur on the feet.

Nerve damage can reduce sensation, meaning a person may not notice a small injury.

Reduced circulation can make healing more difficult.

Pay attention to foot health

If you have diabetes or persistently elevated glucose, inspect your feet regularly.

Look for:

• Cuts
• Blisters
• Redness
• Swelling
• Cracks
• Sores
• Changes in skin color

Don’t ignore a wound simply because it does not hurt.

If a wound becomes increasingly red, swollen, warm or painful, or develops drainage, seek medical attention.

6. You Feel Hungry Even After Eating

Persistent increased hunger, sometimes called polyphagia, can occur with uncontrolled diabetes.

The underlying problem can involve how the body is using glucose.

Even though glucose is present in the bloodstream, insulin problems can prevent cells from using it efficiently.

The body may respond by increasing hunger signals.

You might notice:

• Feeling hungry shortly after meals
• Snacking more frequently
• Larger-than-usual portions
• Strong food cravings
• Difficulty feeling satisfied

But increased appetite has many possible causes.

Changes in physical activity, sleep, stress, medications and dietary patterns can all affect hunger.

If increased hunger is accompanied by excessive thirst, frequent urination and unexplained weight loss, it deserves medical evaluation.

7. You Are Losing Weight Without Trying

Unintentional weight loss can occur when blood glucose is severely uncontrolled.

If the body cannot use glucose efficiently for energy, it may begin breaking down stored fat and, in some circumstances, muscle tissue.

This can cause weight loss despite normal or increased food intake.

A person might experience the unusual combination of:

More hunger + more eating + unexplained weight loss.

That combination should not be ignored.

Unintentional weight loss can also have many other causes, including thyroid disease, gastrointestinal disorders, infections, certain medications and other medical conditions.

If you are losing a significant amount of weight without intentionally trying to do so, make an appointment with a healthcare professional.

Other Possible Signs of High Blood Sugar

The seven symptoms above receive much of the attention, but elevated blood glucose can sometimes be associated with additional changes.

Dry Mouth

Frequent urination can cause fluid loss and dehydration.

This may leave your mouth feeling unusually dry.

Persistent dry mouth can also have other causes, including medications, mouth breathing and dehydration.

Dry or Itchy Skin

Dehydration can contribute to dry skin.

Diabetes can also be associated with various skin conditions.

Persistent itching or unexplained skin changes should be evaluated rather than automatically attributed to blood sugar.

Recurrent Infections

High blood sugar can impair certain immune functions.

Some people with poorly controlled diabetes may experience recurrent infections, including certain urinary or fungal infections.

Frequent infections do not necessarily mean you have diabetes, but repeated unexplained infections may be worth discussing with a clinician.

Tingling or Numbness

Long-term high blood sugar can damage nerves.

This is called diabetic neuropathy.

Symptoms can include:

• Tingling
• Burning
• Numbness
• Pain
• Increased sensitivity

These symptoms often begin in the feet or hands.

However, nerve symptoms can have many causes, so medical evaluation is important.

What Does High Blood Sugar Actually Do to Your Body?

Understanding what happens inside the body helps explain why the symptoms occur.

After a meal, carbohydrates are digested into glucose.

Glucose enters the bloodstream.

The pancreas releases insulin.

Insulin helps many cells take glucose from the blood and use it for energy.

When this system becomes impaired, glucose levels rise.

In insulin resistance

The body’s cells become less responsive to insulin.

The pancreas may compensate by producing more insulin.

For a while, blood glucose can remain relatively controlled.

But over time, the pancreas may struggle to keep up with the body’s insulin needs.

Blood glucose can then begin rising.

In type 1 diabetes

The immune system mistakenly attacks insulin-producing beta cells in the pancreas.

The body produces little or no insulin.

Without sufficient insulin, glucose cannot be properly controlled.

Type 1 diabetes often develops more rapidly than type 2 diabetes and requires insulin treatment.

In type 2 diabetes

Type 2 diabetes generally involves insulin resistance combined with a gradual decline in the pancreas’s ability to produce enough insulin.

Genetics, age, body composition, physical activity, diet and other factors can influence risk.

Prediabetes: The Warning Stage Many People Miss

Prediabetes means blood glucose is higher than normal but not yet within the diagnostic range for diabetes.

One of the biggest problems with prediabetes is that many people have no obvious symptoms.

You may feel completely healthy.

That is why waiting for symptoms is not an effective screening strategy for people at increased risk.

Prediabetes is important because it indicates a higher risk of developing type 2 diabetes and cardiovascular disease.

It can also provide an opportunity to make changes before blood glucose progresses further.

Depending on the individual, healthcare professionals may recommend:

• Increased physical activity
• Improved dietary patterns
• Weight management when appropriate
• Better sleep habits
• Regular monitoring
• Medication in selected higher-risk individuals

Who Is More Likely to Develop High Blood Sugar?

Anyone can develop abnormal blood glucose, but certain factors increase the risk.

These include:

• Family history of type 2 diabetes
• Overweight or obesity
• Physical inactivity
• Increasing age
• Previous gestational diabetes
• Certain ethnic backgrounds
• High blood pressure
• Abnormal cholesterol or triglyceride levels
• Polycystic ovary syndrome
• History of cardiovascular disease
• Certain medications or medical conditions

Having a risk factor does not mean that you will develop diabetes.

Likewise, not having obvious risk factors does not guarantee protection.

Why Belly Fat Can Matter

Where the body stores fat may also influence metabolic health.

Excess fat around the abdomen is associated with increased insulin resistance.

This does not mean that everyone with abdominal fat has diabetes.

But increasing waist size, particularly when combined with high blood pressure, abnormal cholesterol or elevated glucose, can indicate increased metabolic risk.

Instead of focusing only on body weight, healthcare professionals often consider the bigger picture:

• Waist circumference
• Blood pressure
• Blood glucose
• A1C
• Cholesterol
• Triglycerides
• Physical activity
• Family history

What Happens to Blood Sugar After You Eat?

Blood sugar naturally rises after eating.

That is normal.

The important question is how high it rises and how efficiently it returns toward your usual range.

Meals containing carbohydrates tend to raise blood glucose more than meals with little carbohydrate.

But the response varies depending on:

• Portion size
• Type of carbohydrate
• Fiber content
• Protein
• Fat
• Physical activity
• Insulin sensitivity
• Medications
• Individual metabolism

For example, a meal containing vegetables, beans, whole grains and protein may produce a different glucose response than a large meal dominated by refined carbohydrates and sugary beverages.

This is one reason overall dietary patterns matter more than demonizing one particular food.

Foods and Drinks That Can Raise Blood Sugar Quickly

Certain foods and drinks contain large amounts of rapidly absorbed carbohydrates.

Examples include:

• Regular soda
• Sweetened tea
• Energy drinks containing sugar
• Candy
• Cakes
• Cookies
• Pastries
• Many desserts
• Refined breads
• Large portions of white rice
• Some sweetened breakfast cereals

This does not mean every person must completely eliminate these foods.

Rather, frequency, portion size and overall dietary quality matter.

For people trying to improve glucose control, reducing sugar-sweetened beverages can be one of the simplest changes to consider.

What Foods Can Support Healthy Blood Sugar?

There is no single “magic” food that cures high blood sugar.

Instead, a balanced dietary pattern can support metabolic health.

Consider emphasizing:

Non-starchy vegetables

Examples include broccoli, spinach, cauliflower, peppers, green beans and leafy greens.

Beans and lentils

These provide fiber and plant protein.

Whole grains

Examples include oats, barley and other minimally processed whole grains.

Nuts and seeds

These can provide healthy fats, protein and fiber.

Lean proteins

Examples include fish, poultry, eggs, tofu and other appropriate protein sources.

Whole fruit

Whole fruit contains carbohydrates but also provides fiber and nutrients. Portion size and individual glucose response still matter.

Why Sugary Drinks Deserve Special Attention

Liquid sugar can be easy to consume quickly.

A sugary beverage may contain substantial carbohydrate without creating the same feeling of fullness as a solid meal.

Examples include:

• Soda
• Sweet tea
• Some fruit drinks
• Sweetened coffee beverages
• Certain energy drinks

Replacing sugary beverages with water or unsweetened alternatives can reduce added sugar intake.

For people who currently consume several sugary drinks each day, even one substitution can be a practical starting point.

Can Walking Help Blood Sugar?

Physical activity can help muscles use glucose.

When muscles contract during activity, glucose uptake can increase through mechanisms that do not depend entirely on insulin.

Regular physical activity can therefore improve insulin sensitivity.

Walking is an accessible option for many people.

A short walk after meals may be useful for some people, although individual circumstances vary.

Other activities can also help:

• Cycling
• Swimming
• Dancing
• Hiking
• Resistance training
• Jogging
• Sports

The best exercise is often the one you can perform consistently and safely.

If you have significant medical problems or have been inactive for a long time, speak with a healthcare professional about an appropriate exercise plan.

Strength Training and Blood Sugar

Resistance training is often overlooked when people discuss blood glucose.

Muscle tissue plays an important role in glucose metabolism.

Building and maintaining muscle can support insulin sensitivity and metabolic health.

Examples of resistance exercise include:

• Bodyweight squats
• Push-ups
• Resistance bands
• Weight machines
• Free weights

You do not necessarily need an expensive gym membership.

A properly designed home routine can also provide resistance exercise.

Sleep and Blood Sugar

Poor sleep can affect appetite, stress hormones and metabolic health.

Short or disrupted sleep may make it harder to maintain healthy eating habits and can influence insulin sensitivity.

If you regularly sleep poorly, consider addressing:

• Consistent bedtime
• Excessive evening caffeine
• Screen exposure before bed
• Alcohol consumption
• Bedroom temperature and noise
• Irregular sleep schedules

Persistent insomnia or suspected sleep apnea should be discussed with a healthcare professional.

Stress Can Affect Blood Glucose

Stress activates hormonal systems that help the body respond to challenges.

Hormones such as cortisol and adrenaline can influence blood glucose.

Short-term stress may temporarily raise glucose.

Chronic stress can also affect eating patterns, sleep, exercise and medication adherence.

Stress management does not replace medical treatment, but strategies such as regular physical activity, relaxation exercises, social connection and adequate sleep may support overall health.

How Is High Blood Sugar Diagnosed?

Symptoms alone cannot diagnose diabetes.

Healthcare professionals use blood tests.

A1C

A1C estimates average blood glucose over roughly the previous two to three months.

It is commonly used to diagnose diabetes and prediabetes and to monitor diabetes.

Fasting Plasma Glucose

This test measures glucose after fasting.

It is another standard test used in diabetes evaluation.

Oral Glucose Tolerance Test

This involves measuring glucose before and after consuming a glucose-containing drink.

It is particularly useful in certain situations.

Random Plasma Glucose

A random glucose measurement can be performed without fasting.

In a person with classic symptoms, a sufficiently elevated result can be important for diagnosis.

The exact diagnostic thresholds should be interpreted by a qualified healthcare professional.

Why One Glucose Reading May Not Tell the Whole Story

Blood glucose changes throughout the day.

It can be affected by:

• Food
• Exercise
• Stress
• Illness
• Sleep
• Medication
• Hormones

Therefore, one unusual reading does not necessarily establish a diagnosis.

Repeated abnormal results or an appropriate diagnostic test provide much more useful information.

What About Home Glucose Meters?

Home glucose meters can be very useful, especially for people already diagnosed with diabetes.

They allow people to monitor glucose at different times, including before and after meals.

Continuous glucose monitors can provide even more detailed information about glucose trends.

But a home device should not replace professional diagnosis.

If you repeatedly see unexpected high readings, contact your healthcare professional.

When Should You Talk to a Doctor?

Consider speaking with a healthcare professional if you have:

• Persistent excessive thirst
• Frequent urination
• Unexplained weight loss
• Persistent fatigue
• Recurrent infections
• Repeatedly high glucose readings
• Blurred vision
• Slow-healing wounds
• A strong family history of diabetes
• Multiple risk factors for diabetes

Your clinician can determine whether blood glucose, A1C or additional testing is appropriate.

When High Blood Sugar Becomes an Emergency

Extremely high blood sugar can become dangerous.

Two serious complications are diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemic state (HHS).

Warning signs of DKA

Symptoms may include:

• Severe thirst
• Frequent urination
• Nausea
• Vomiting
• Abdominal pain
• Deep or rapid breathing
• Fruity-smelling breath
• Severe weakness
• Confusion

DKA requires urgent medical treatment.

Warning signs of HHS

HHS can cause severe dehydration and very high blood glucose.

Possible symptoms include:

• Extreme thirst
• Frequent urination
• Severe weakness
• Confusion
• Altered consciousness
• Severe dehydration

These conditions can be life-threatening.

If you or someone else with diabetes appears seriously ill, confused, severely dehydrated or has difficulty breathing, seek emergency medical care.

Long-Term Effects of Uncontrolled High Blood Sugar

The concern about high blood sugar is not just the symptoms you feel today.

Persistently elevated glucose can contribute to long-term complications.

Heart and Blood Vessels

Diabetes increases the risk of cardiovascular disease, including heart attack and stroke.

Kidneys

High blood sugar can damage the tiny blood vessels responsible for filtering blood in the kidneys.

This is called diabetic kidney disease.

Eyes

Diabetes can damage retinal blood vessels and increase the risk of vision loss.

Nerves

Long-term glucose elevation can damage nerves, particularly those in the feet.

Feet

Reduced sensation and impaired healing can make foot injuries more dangerous.

This is why diabetes management is about much more than simply reducing a number on a glucose meter.

Can High Blood Sugar Be Prevented?

Type 1 diabetes cannot currently be prevented through lifestyle changes.

For type 2 diabetes, however, many people can reduce their risk through healthy lifestyle habits.

Important steps include:

• Maintaining regular physical activity
• Eating a balanced diet
• Limiting sugary drinks
• Eating adequate fiber
• Managing body weight when appropriate
• Getting adequate sleep
• Avoiding tobacco
• Keeping blood pressure under control
• Managing cholesterol
• Attending recommended health screenings

No lifestyle plan can guarantee that someone will never develop diabetes, because genetics and other factors also matter.

A Simple Daily Strategy for Better Blood Sugar Habits

You do not need to completely change your life overnight.

Start with manageable habits.

Morning

Choose a balanced breakfast containing protein and fiber rather than relying heavily on sugary foods.

During the day

Drink water regularly and limit sugar-sweetened beverages.

Meals

Build meals around vegetables, protein and high-fiber carbohydrate sources.

After meals

If appropriate for your health, consider light physical activity such as walking.

Evening

Avoid routinely eating large amounts of highly processed or sugary foods late at night.

Sleep

Aim for a consistent sleep schedule.

Small improvements repeated every day can be more sustainable than extreme short-term diets.

Common Myths About High Blood Sugar

Myth: “If I don’t feel symptoms, my blood sugar must be normal.”

Not necessarily.

Prediabetes and early type 2 diabetes may cause few or no noticeable symptoms.

Myth: “Only people who eat sugar develop diabetes.”

False.

Diabetes is influenced by genetics, insulin resistance, body composition, physical activity, age and many other factors.

Eating excessive added sugar can contribute to unhealthy calorie intake and weight gain, but diabetes is much more complicated than simply eating sugar.

Myth: “Fruit automatically causes diabetes.”

Whole fruit contains natural sugars but also provides fiber, vitamins and other nutrients.

The appropriate amount varies between individuals, especially for people managing diabetes.

Myth: “A natural supplement can cure diabetes.”

There is no reliable substitute for evidence-based diabetes treatment.

Some supplements can also interact with medications.

Myth: “You can diagnose diabetes from symptoms alone.”

No.

Symptoms can raise suspicion, but blood testing is needed for diagnosis.

7 Signs Your Blood Sugar May Be Too High: Quick Checklist

Keep these seven signs in mind:

1. Excessive thirst

You are unusually thirsty despite drinking fluids.

2. Frequent urination

You are going to the bathroom much more often than usual.

3. Persistent fatigue

You feel unusually tired or weak.

4. Blurred vision

Your vision becomes temporarily blurry or changes unexpectedly.

5. Slow-healing wounds

Cuts, blisters or sores take longer than expected to heal.

6. Increased hunger

You remain unusually hungry even after eating.

7. Unexplained weight loss

You are losing weight without intentionally changing your diet or exercise.

The more of these symptoms you experience together, the more important it is to consider medical evaluation.

Frequently Asked Questions

What is the most common symptom of high blood sugar?

There is no single symptom that everyone experiences. Increased thirst and frequent urination are classic symptoms, while some people may have fatigue, blurred vision or unexplained weight loss.

Can high blood sugar happen without diabetes?

Yes.

Temporary elevations can occur during illness, stress or because of certain medications. Persistent high blood glucose, however, requires medical evaluation to determine the underlying cause.

Can prediabetes cause symptoms?

Often it does not.

Many people with prediabetes feel completely normal.

Can high blood sugar cause headaches?

Changes in glucose and dehydration may contribute to headaches in some people, but headaches have many causes and are not a reliable sign of hyperglycemia.

Can high blood sugar make you thirsty at night?

Yes. Increased urination caused by elevated glucose can lead to fluid loss and increased nighttime thirst.

Why do I wake up to urinate several times?

There are many possible causes, including high blood sugar, increased evening fluid intake, caffeine, medications and urinary conditions. New or persistent nighttime urination should be discussed with a healthcare professional.

Can high blood sugar cause hair loss?

Diabetes and metabolic problems may be associated with hair changes in some people, but hair loss has many causes, including genetics, thyroid problems, nutritional deficiencies and hormonal changes.

It should not be used as a specific sign of high blood sugar.

Can drinking water lower blood sugar?

Water helps prevent dehydration and supports normal kidney function, but drinking water alone does not treat diabetes.

If your glucose is significantly elevated, follow your diabetes treatment plan and seek medical advice when necessary.

Does exercise lower blood sugar?

Physical activity can increase glucose use by muscles and improve insulin sensitivity.

However, people taking insulin or certain glucose-lowering medications need to understand how exercise can affect their glucose and risk of hypoglycemia.

Can stress increase blood sugar?

Yes.

Stress hormones can cause blood glucose to rise in some people.

Chronic stress can also indirectly affect glucose through changes in sleep, eating and activity.

Is high blood sugar always dangerous?

A mild temporary increase may not be an emergency.

The greater concern is persistent or very high glucose, particularly when accompanied by symptoms of serious dehydration or metabolic complications.

What should I do if I think my blood sugar is high?

If symptoms persist, arrange an appropriate medical evaluation and glucose testing.

If you already have diabetes, follow the monitoring and treatment instructions provided by your healthcare team.

If you develop severe symptoms such as confusion, repeated vomiting, severe dehydration or difficulty breathing, seek emergency medical care.

Final Takeaway

High blood sugar can be difficult to recognize because its symptoms can develop gradually and overlap with many everyday health problems.

The 7 signs your blood sugar may be too high include:

Excessive thirst, frequent urination, persistent fatigue, blurred vision, slow-healing wounds, increased hunger and unexplained weight loss.

These symptoms are clues—not a diagnosis.

Prediabetes and early type 2 diabetes may produce no obvious symptoms at all, which is why appropriate screening is important for people at increased risk.

If you notice several symptoms together, especially excessive thirst and frequent urination combined with unexplained weight loss or significant fatigue, don’t simply ignore them.

A simple blood test can provide much more useful information than trying to diagnose yourself from symptoms.

And if you already have diabetes, consistent monitoring, prescribed treatment, physical activity, nutritious eating and regular medical follow-up can help reduce the risk of complications.

Listen to your body, but verify with testing.

Medical Disclaimer

This article is for general educational purposes only and does not provide individualized medical advice, diagnosis or treatment. Symptoms of high blood sugar can overlap with many other medical conditions. If you are concerned about your blood glucose, speak with a qualified healthcare professional. If you experience severe symptoms such as confusion, difficulty breathing, repeated vomiting or signs of severe dehydration, seek urgent medical care.