Low blood sugar can cause behavior signs that can mimic stroke, seizure or other neurological disorders. Another name for low blood sugar is hypoglycemia. Individuals with diabetes are especially prone to the development of low blood sugar, but hypoglycemia can also affect people without diabetes. The condition is known as reactive hypoglycemia and it might occur approximately four hours after eating a meal. Low blood sugar can be measure by a blood test or with a glucose meter. Blood sugar levels less than 70 mg/dl accompanied by symptoms can confirm that behavior changes are related to signs of low blood sugar.
Signs While Sleeping
Signs of low blood sugar that can occur during sleep include restlessness, irritability upon awakening and damp clothing or sheets from excessive perspiration. When blood sugar levels become low during the night, nightmare, talking or crying out can be signs that blood sugar levels have dropped below normal.
Signs Related to Epinephrine Release
When blood sugar levels drop, epinephrine (adrenalin) is released. Epinephrine is a stress hormone that causes the "flight or fight syndrome". Behavior signs of low blood sugar related to epinephrine release include shakiness, nervousness, sweating, anxiety and hunger. Fast heart rate can be present. Nausea and blurred vision can accompany other signs of low blood sugar.
Cognitive
Inability to concentrate is a behavior signs of low blood sugar. Anger, crying and slurred speech can occur. A person may respond to simple questions inappropriately. A person may behave as if they are drunk or dazed. Confusion and disorientation to surroundings can occur. Children and adults with low blood sugar may be excessively sleepy. Persistent low blood sugar levels can cause depression.
Severe Low Blood Sugar
Blood sugar levels below 20 mg/dl can cause severe signs and symptoms that include seizures, coma, stroke and death.
