Common causes of dizziness include a migraine, medications, and alcohol. It can also be caused by a problem in the inner ear, where balance is regulated. Dizziness is often a result of vertigo as well. The most common cause of vertigo and vertigo-related dizziness is benign positional vertigo (BPV)... Dizziness can have causes that aren't due to underlying disease. Examples include spinning in circles, intoxication, medication side effects or standing up too quickly.