Differential diagnosis<unk>  may occur from an abnormality involving the brain (in particular the brainstem or cerebellum), inner ear, eyes, heart, vascular system, fluid or blood volume, spinal cord, peripheral nerves, or body electrolytes.<unk>  can accompany certain serious events, such as a concussion or brain bleed, epilepsy and seizures (convulsions), strokes, and cases of meningitis and encephalitis. However, the most common subcategories can be broken down as follows: 40% peripheral vestibular dysfunction, 10% central nervous system lesion, 15% psychiatric disorder, 25% presyncope/disequilibrium, and 10% nonspecific<unk> . Some vestibular pathologies have symptoms that are comorbid with mental disorders. While traditional medical teaching has focused on determining the cause of<unk>  based on the category (e.g. vertigo vs presyncope), recent research suggests that this analysis is of limited clinical utility. Medical conditions that often have<unk>  as a symptom include: * Benign paroxysmal positional vertigo * Meniere's disease * Labyrinthitis * Otitis media * Brain tumor * Acoustic neuroma * Motion sickness * Ramsay Hunt syndrome * Migraine * Multiple sclerosis * Pregnancy * Low blood pressure (hypotension) * Low blood oxygen content (hypoxemia) * Heart attack * Iron deficiency (anemia) *Vitamin B12 deficiency * Low blood sugar (hypoglycemia) * Hormonal changes (e.g. thyroid disease, menstruation, pregnancy) * Panic disorder * Hyperventilation * Anxiety * Depression * Age-diminished visual, balance, and perception of spatial orientation abilities * a stroke is the cause of isolated<unk>  in 0.7% of people who present to the emergency department.
Dizziness
Vertigo
Diplopia
Cyclopia
Tinnitus
Headache
Osmophobia
Photophobia