Frequent urination
Increased thirst
Unexplained weight loss
Increased hunger
Blurry vision
Fatigue or low energy
Slow-healing wounds or frequent infections
Frequent or recurring infections (especially skin, gums, or genital)
Tingling, numbness, or pain in the hands or feet
Darkened or velvety skin in body folds (often neck, armpits, groin)
Areas of skin with unusual discoloration or skin tags
Dry mouth
Nausea or vomiting
Rapid breathing or deep breathing (can be a sign of emergency in severe cases)
Fruity or acetone-like breath (can be a sign of emergency in severe cases)
Confusion or drowsiness (can be a sign of emergency in severe cases)
Very high blood sugar readings on a home glucose meter, if available
Symptoms that get worse over days to weeks, especially in type 1 diabetes
Symptoms that develop gradually, often in type 2 diabetes
If you are pregnant: signs of gestational diabetes (often no symptoms) and abnormal screening results