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Mayo Clinic

Low blood sugar a concern for patient with diabetes

DEAR MAYO CLINIC: I have type 2 diabetes and take medication for it. How concerned should I be about my blood sugar getting too low?

ANSWER: Low blood sugar (hypoglycemia) results from too much insulin and too little sugar (glucose) in your blood. In adults, it usually occurs in people with diabetes who take some of the medications for diabetes, including insulin.

When blood glucose drops too low, you may start with the warning symptoms of feeling weak, dizzy, nervous, sweaty or hungry, or have visual disturbances or a rapid heartbeat. If blood sugar drops further, signs and symptoms may progress to neurological features like headache, confusion, slurred speech, drunken-like...