The symptoms of hypoglycemia, or low blood sugar, in diabetics include unexpected fatigue, nervousness, mood swings, fast heartbeat and vision changes, states Healthline. Diabetics with hypoglycemia may also experience shaking, hunger, headache or pale skin. Those who are not aware that their blood sugar levels are rapidly decreasing may faint, suffer a seizure or go into a coma.
Extremely low blood sugar requires prompt treatment involving the consumption of 15 grams of fast-digesting carbohydrates, such as one tablespoon of sugar or honey, three to four glucose tablets or hard candies, four to five saltine crackers, or one-half cup of regular soda or juice, notes Healthline. After 15 minutes, the diabetic should test his blood sugar again and consume another 15 grams of carbohydrates if the levels remain low.
Blood glucose levels that drop below 70 milligrams per deciliter indicate low blood sugar, explains Healthline. Diabetics who are taking medications that raise the body's insulin levels are susceptible to hypoglycemia. Common causes of the condition include too much exercise, eating inadequate meals, skipping meals or taking excessive medication. Nondiabetics who drink too much alcohol or suffer from conditions such as hepatitis may also experience hypoglycemia.
To prevent low blood sugar, it helps to monitor blood sugar levels regularly and carry high-carbohydrates\ snacks at all times, recommends Healthline.