Blood sugar changes can disturb sleep. High blood sugar may cause thirst and bathroom trips. Low blood sugar may cause sudden waking, sweating, vivid dreams, or anxiety-like feelings.
Restless sleep alone does not prove diabetes, but it matters when it appears with thirst, frequent urination, tingling feet, blurry vision, or morning fatigue.
6. Blurry Vision at Night or in the Morning
Blurred vision can happen when blood sugar changes affect fluid balance in the eye. Some people notice blurry reading, changing focus, or unclear vision in the morning.
Sudden or severe vision changes should be checked urgently. Repeated blurry vision with thirst and frequent urination should prompt a blood sugar check.
7. Waking Up Tired Even After Sleeping
