Hypoglycemia
Hypoglycemic symptoms can also occur when one is sleeping. Examples of symptoms during sleep can include damp bed sheets or clothes from perspiration. Having nightmares or the act of crying out can be a sign of hypoglycemia. Once the individual is awake they may feel tired, irritable, or confused and these may be signs of hypoglycemia as well.
Seale Harris
Harris' syndrome is a historical term for hyperinsulinemic hypoglycemia, such as that caused by insulin-producing tumors of the pancreas (insulinoma). The syndrome is characterized by the symptoms of low blood sugar: weakness, hunger, shakiness, increasing nervousness, mild mental confusion or even personality alterations with erratic behaviour, and the adrenergic responses of tachycardia, pallor, and sweating. The concept of the syndrome was postulated by Harris, in 1924, after he observed hypoglycemia produced during treatment of diabetic patients with the newly discovered insulin.