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.
Vertiginous epilepsy
In the late 19th century and early 20th century, Hughlings Jackson and W.R. Gowers recognized that episodes of dizziness were a symptom of epilepsy. During this time, when epileptic symptoms were brought to the forefront of study, there was no distinction between dizziness and vertigo. Sir George Frederick (1868–1941), known for his work in pediatric rheumatoid arthritis referred to as Still’s disease, was the first to publish a description of episodic vertigo in children within the broad category of ‘headaches in children’ in 1924. Until recently, it was not widely recognized that episodes of suspected dizziness might be caused by epilepsy.