Diseases and Conditions
Hypoglycemia
Hypoglycemia unawareness
Overview
Symptoms
Complications
Causes
Prevention
Diagnosis
Treatment
Preparing for an appointment
Symptoms
If blood sugar levels become too low, signs and symptoms can include:
- An irregular or fast heartbeat
- Fatigue
- Pale skin
- Shakiness
- Anxiety
- Sweating
- Hunger
- Irritability
- Tingling or numbness of the lips, tongue or cheek
As hypoglycemia worsens, signs and symptoms can include:
- Confusion, abnormal behavior or both, such as the inability to complete routine tasks
- Visual disturbances, such as blurred vision
- Seizures
- Loss of consciousness
When to see a doctor
Seek a doctor's help immediately if:
- You have what might be hypoglycemia symptoms and you don't have diabetes
- You have diabetes and hypoglycemia isn't responding to treatment, such as drinking juice or regular soft drinks, eating candy, or taking glucose tablets
Seek emergency help for someone with diabetes or a history of hypoglycemia who has symptoms of severe hypoglycemia or loses consciousness.