Subtle symptoms of high blood sugar levels body sends out long before diabetes starts

Many people overlook the earliest symptoms of diabetes — fatigue, thirst, blurred vision — until blood sugar rises dangerously. Here's how to spot the warning signs. (Image: Pexels)

You may be feeling dull, a bit thirstier, more tired, perhaps your vision seems slightly fuzzy, however, what you shrug off as everyday fatigue, could be the first sign of rising blood-sugar levels. Recognising the early signs of diabetes, before it fully takes hold, can give you a head-start, allowing lifestyle changes that could delay or even prevent the disease.

What is diabetes?

Diabetesis a condition in which your body struggles to regulate glucose, the sugar that fuels nearly every cell. Under normal circumstances, a hormone called insulin helps release glucose from the blood into your cells. But, as per the National Institute of Diabetes and Digestive and Kidney Diseases, when the body becomes less responsive to insulin, or doesn’t produce enough, blood sugar builds up. With time, this imbalance can lead to the chronic disease known as Type 2 diabetes.

The Centers for Disease Control and Prevention (CDC) informs that many people with early-stage type 2 diabetes or prediabetes remain unaware, because symptoms are often mild or develop slowly. That makes knowing what to look for all the more important.

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Here are some early signs that you should look for:

Frequent thirst and urination

If you find yourself drinking water and then frequently going to the loo, especially at night, more than usual, take note. This is often one of the earliest signs.

Unexplained hunger or weight loss

Despite eating as normal, or even more, you might be starving. Or, you may lose weight without trying. That’s because your cells aren’t getting their share of glucose, so your body burns fat or even muscle as energy.

Fatigue and sluggishness

Feeling unusually tired or weak, even after a good night’s sleep, can mean your cells are starving for energy. As per the American Diabetes Association, a subtle, but persistent fatigue is a common early sign.

Blurred vision or numbness

Small shifts in eyesight, blurred vision, trouble focusing, may appear. In some cases, there might be tingling or numbness in the hands or feet. Such sensory changes can indicate that high blood sugar is beginning to affect nerves and eyes.

Slow-healing sores or frequent infections

Cuts or skin wounds that take unusually long to heal, or recurrent infections, can also signal early diabetes. The CDC reveals that high glucose levels interfere with the immune system and circulation, slowing recovery.

Early prevention matters:

Studies suggest that early blood sugar imbalance is often reversible. The CDC explains that when someone is identified as pre-diabetes, blood sugar higher than normal, but not yet diabetes, lifestyle changes can make a huge difference. Even modest weight loss and regular physical activity can help bring levels back down. Follow a balanced diet that is rich in whole foods, fruits, vegetables, lean proteins and reduce processed foods.

Include moderate exercise: walking, light jogging or any activity that raises the heart rate for at least 30 minutes most days.

Also Read: Can diabetes be reversed naturally? Expert explains the diet, exercise and sleep formula

Don’t wait, get tested:

Always consult a doctor if you notice even one or two of these symptoms; thirst that won’t go away, persistent fatigue, unexpected weight change, or recurrent infections. A simple blood sugar test, often the A1C test, can reveal whether you are in the clear, in pre-diabetes territory, or already on the path to type 2 diabetes.

FAQs on early signs of diabetes:

1. What are the common early signs of diabetes?

Early signs include frequent thirst and urination, unexplained hunger or weight loss, fatigue and sluggishness, blurred vision or numbness, and slow-healing sores or frequent infections.

2. How do frequent thirst and urination indicate diabetes?

When blood sugar levels are high, your kidneys work harder to filter and absorb the excess sugar, leading to increased thirst and urination.

3. Why does diabetes cause unexplained hunger or weight loss?

Diabetes affects the body's ability to use glucose efficiently, leading to cells starving for energy. This can result in increased hunger or unexpected weight loss as the body burns fat and muscle.

4. Is fatigue a reliable sign of early diabetes?

Yes, persistent fatigue or sluggishness, even with adequate rest, can be an early sign of diabetes due to cells not getting enough energy.

5. How does diabetes affect vision and nerves?

High blood sugar can impact the nerves and eyes, causing blurred vision, difficulty focusing, or numbness in extremities.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.