Other symptoms that can occur with high blood sugar are: Headaches. Tiredness. Blurred vision. Hunger. Trouble with thinking or concentrating. Frequent urination
Hyperglycemias main symptoms are an increased thirst and the need to urinate often. Other symptoms and signs of high blood sugar levels in the blood are blurred vision, hunger (“hangry”), and headaches.
If your doctor suspects you might have diabetes, they’ll do a blood test to see the amount of sugar in your blood that’s physically attached to hemoglobin cells, Dr. Adimoolam says. The higher your blood sugar over the past few months, the more of those hemoglobin cells will be attached to sugar molecules.