The symptoms, which usually come on suddenly, are hunger, dizziness , and sweating. Personality change or confusion may also occur. If a reaction results in loss of consciousness, emergency medical care should be obtained immediately. If you have had repeated reactions or if an insulin reaction has led to a loss of consciousness, contact your physician.
Severe hypoglycemia can result in temporary or permanent impairment of brain function and death.
In certain cases, the nature and intensity of the warning symptoms of hypoglycemia may change. A few patients have reported that after being transferred to human insulin , the early warning symptoms of hypoglycemia were less pronounced than they had been with animal-source insulin. The most common causes are acute illness, infection , failure to take enough insulin by injection , or catheter clogging when used with an external insulin infusion pump. If you are ill, you should check your urine for ketones. It is particularly important to maintain good control of your diabetes during pregnancy and special attention must be paid to your diet , exercise and insulin regimens.