Small skin nodules (rash).

Persistently high blood sugar levels can increase triglyceride levels, 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 are not painful, they are a sign that blood sugar and lipid levels may be too high.

Chronic fatigue:
Without sufficient insulin, cells lack the glucose they need for energy. Instead, sugar remains in the blood, causing feelings of exhaustion, weakness, or difficulty concentrating. Chronic fatigue associated with high blood sugar often does not improve with rest and can persist for weeks or months if left untreated.

Headaches and blurred vision: