Adult Hypoglycemia

Hypoglycemia is a condition in which your blood sugar (glucose) level is lower than the standard range. Glucose is your body's main energy source. Hypoglycemia is often related to diabetes treatment. But other drugs and a variety of conditions many rare can cause low blood sugar in people who don't have diabetes.

Hypoglycemia needs immediate treatment. For many people, a fasting blood sugar of 70 milligrams per deciliter (mg/dL), or 3.9 millimoles per liter (mmol/L), or below should serve as an alert for hypoglycemia. But your numbers might be different. Ask your health care provider.

Symptoms

If blood sugar levels become too low, hypoglycemia signs and symptoms can include:

• Looking pale
• Shakiness
• Sweating
• Headache
• Hunger or nausea
• An irregular or fast heartbeat
• Fatigue
• Irritability or anxiety
• Difficulty concentrating