What are the symptoms?

Hypos feel differently from person to person.

In addition to the symptoms described on this page, early signs of hypoglycaemia can be difficulty thinking and concentrating or changes in mood.

Some people do not recognise warning signs until the hypoglycaemic episode becomes severe; others never sense them coming on. This condition, called "hypoglycaemic unawareness," should be brought to the attention of your doctor or nurse by you or by someone close to you who may be in a better position to recognise it.

Severe hypoglycaemia presents a serious danger. Therefore, people with insulin-dependent diabetes are encouraged to regularly monitor their blood glucose to learn to be sensitive to warning signs such as those described below. A good idea is to keep a diary of your hypos. Record when they happen, and what symptoms you experienced so you become more aware of them.

Symptoms and signs

  • Anxiety
  • Blurred Vision
  • Feeling cold
  • Feeling weak
  • Drowsiness
  • Euphoria
  • Headache
  • Hunger
  • Irritability
  • Nervousness
  • Pounding heart
  • Restless sleep
  • Sweating
  • Trembling
  • Unconsciousness