Constant thirst (polydipsia)
One of the most common early symptoms of high blood sugar is insatiable thirst. When glucose builds up in the blood, the kidneys work harder to filter the excess and excrete it in the urine. This causes dehydration, which leads to a greater thirst for water than usual.
Increased hunger (polyphagia)
High blood sugar levels impair the body’s ability to convert food into usable energy. Because glucose can’t enter cells efficiently, the brain interprets this as a lack of energy, even if you’ve just eaten. As a result, you may feel unusually hungry and crave larger meals or frequent snacks.
Small Skin Nodules (Rash)
Persistently high glucose levels can increase triglycerides, a type of fat in the blood. This can lead to the formation of small, yellowish nodules on the skin, often on the arms, legs, buttocks, or hands. Although these nodules aren’t painful, they signal that blood glucose and lipid levels may be too high.
Chronic Fatigue
Without sufficient insulin, cells are deprived of the glucose they need for energy. Instead, the sugar remains in the blood, causing feelings of exhaustion, weakness, or difficulty concentrating. Chronic fatigue associated with high blood sugar often doesn’t improve with rest and, if untreated, can persist for weeks or months.
Headaches and Blurred Vision
Hyperglycemia can cause fluid shifts that affect the lens of the eye, resulting in swelling, blurred vision, and difficulty concentrating. In some cases, stress can trigger headaches, further impacting productivity and daily well-being.
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