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Symptoms
By Mayo Clinic staffYour brain needs a steady supply of sugar (glucose), for it neither stores nor manufactures its own energy supply. If glucose levels become too low, as occurs with hypoglycemia, it can have these effects on your brain:
- Confusion, abnormal behavior or both, such as the inability to complete routine tasks
- Visual disturbances, such as double vision and blurred vision
- Seizures, though uncommon
- Loss of consciousness, though uncommon
Hypoglycemia may also cause these other signs and symptoms:
- Heart palpitations
- Tremor
- Anxiety
- Sweating
- Hunger
These signs and symptoms aren't specific to hypoglycemia. There may be other causes. The only way to know for sure that hypoglycemia is the cause is by having your blood sugar level measured at the time of these symptoms.
