Early Signs and Symptoms of Diabetes
How can you tell if you have diabetes? Most early symptoms are from higher-than-normal levels of glucose, a kind of sugar, in your blood.

The warning signs can be so mild that you don't notice them. That's especially true of type 2 diabetes. Some people don't find out they have it until they get problems from long-term damage caused by the disease.

With type 1 diabetes, the symptoms usually happen quickly, in a matter of days or a few weeks. They're much more severe, too.

Early Signs of Diabetes
Both types of diabetes have some of the same telltale warning signs.

Hunger and fatigue. Your body converts the food you eat into glucose that your cells use for energy. But your cells need insulin to take in glucose. If your body doesn't make enough or any insulin, or if your cells resist the insulin your body makes, the glucose can't get into them and you have no energy. This can make you hungrier and more tired than usual.
Peeing more often and being thirstier. The average person usually has to pee between four and seven times in 24 hours, but people with diabetes may go a lot more. Why? Normally, your body reabsorbs glucose as it passes through your kidneys. But when diabetes pushes your blood sugar up, your kidneys may not be able to bring it all back in. This causes the body to make more urine, and that takes fluids. The result: You'll have to go more often. You might pee out more, too. Because you're peeing so much, you can get very thirsty. When you drink more, you'll also pee more.
Dry mouth and itchy skin. Because your body is using fluids to make pee, there's less moisture for other things. You could get dehydrated, and your mouth may feel dry. Dry skin can make you itchy.
Blurred vision. Changing fluid levels in your body could make the lenses in your eyes swell up. They change shape and can’t focus.
Symptoms of Type 2 Diabetes
These tend to show up after your glucose has been high for a long time.

Yeast infections. Both men and women with diabetes can get these. Yeast feeds on glucose, so having plenty around makes it thrive. Infections can grow in any warm, moist fold of skin, including:
Between fingers and toes
Under breasts
In or around sex organs
Slow-healing sores or cuts. Over time, high blood sugar can affect your blood flow and cause nerve damage that makes it hard for your body to heal wounds.
Pain or numbness in your feet or legs. This is another result of nerve damage.
Symptoms of Type 1 Diabetes
You might notice:

Unplanned weight loss. If your body can't get energy from your food, it will start burning muscle and fat for energy instead. You may lose weight even though you haven't changed how you eat.
Nausea and vomiting. When your body resorts to burning fat, it makes ketones. These can build up in your blood to dangerous levels, a possibly life-threatening condition called diabetic ketoacidosis. Ketones can make you feel sick to your stomach.
Symptoms of Gestational Diabetes
High blood sugar during pregnancy usually has no symptoms. You might feel a little thirstier than normal or have to pee more often.

Warning Signs of Diabetes Complications
Signs of type 2 diabetes' complications may include:

Slow-healing sores or cuts
Itchy skin (usually around the vaginal or groin area)
Frequent yeast infections
Recent weight gain
Velvety, dark skin changes of the neck, armpit, and groin, called acanthosis nigricans
Numbness and tingling of the hands and feet
Decreased vision
Impotence or erectile dysfunction (ED)
Learn about what you can do to lower your risk of diabetes complications.

Hypoglycemia
Hypoglycemia, or low blood sugar, happens when the level of sugar or glucose in your blood drops too low to fuel the body. You might feel:
Shaky
Nervous or anxious
Sweaty, chilly, or clammy
Cranky or impatient
Confused
Lightheaded or dizzy
Hungry
Sleepy
Weak
Tingly or numb in your lips, tongue, or cheeks
You might notice:

Fast heartbeat
Pale skin
Blurred vision
Headache
Nightmares or crying when you sleep
Coordination problems
Seizures
Hyperglycemia
Hyperglycemia, or high blood sugar, causes many of the warning signs of diabetes listed above, including:

Heavy thirst
Blurry vision
Peeing a lot
More hunger
Numb or tingling feet
Fatigue
Sugar in your urine
Weight loss
Vaginal and skin infections
Slow-healing cuts and sores
Blood glucose over 180 milligrams per deciliter (mg/dl)
Diabetic Coma
Its official name is hyperosmolar hyperglycemic nonketotic syndrome (HHNS). This serious complication can lead to diabetic coma and even death with either type of diabetes, though it’s more common in type 2. It happens when your blood sugar gets too high and your body gets severely dehydrated. Symptoms include:

Blood sugar over 600 mg/dl
Dry, parched mouth
Extreme thirst
Warm, dry skin that doesn’t sweat
High fever (over 101 F)
Sleepiness or confusion
Vision loss
Hallucinations
Weakness on one side of your body
When to Call Your Doctor
If you're older than 45 or have other risks for diabetes, it's important to get tested. When you spot the condition early, you can avoid nerve damage, heart trouble, and other complications.

As a general rule, call your doctor if you:

Feel sick to your stomach, weak, and very thirsty
Are peeing a lot
Have a bad belly ache
Are breathing more deeply and faster than normal
Have sweet breath that smells like nail polish remover (This is a sign of very high ketones.

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