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Summary. 1  Generally, most dizziness is caused by problems of the inner ear and is treatable. 2  Common causes of inner ear dizziness include benign paroxysmal positional vertigo (BPPV), migraine and inflammation of the inner ear balance apparatus called vestibular neuritis.
Central dizziness is caused by problems in the balance portion of the brain. Anytime this portion of the brain is not working properly, dizziness can occur. Symptoms usually include lightheadedness, disorientation, imbalance, and sometimes even blacking out. Causes of central dizziness include low blood sugar, low blood pressure to the brain, strokes, multiple sclerosis, migraine headaches, head injury, tumors, and the aging process, among others.