Stroke
Seizures/postictal paralysis (Todd paralysis)
Syncope
Subdural hemorrhage
Epidural hemorrhage
Hypoglycemia
Hyponatremia
Meningitis/encephalitis
Hyperosmotic Coma
Labyrinthitis
Drug toxicity
Lithium, phenytoin, carbamazepine
Bell's Palsy
Complicated migraine
Meniere Disease
Demyelinating disease (MS)
Conversion disorder<unk>  global amnesia
Giant cell arteritis
Cerebral sinus thrombosis
Lithium, phenytoin, carbamazepine
Transient ischemic attack
Stroke
Ischemic stroke
Seizures/postictal paralysis 
Subarachnoid hemorrhage
Syncope
Hemorrhagic stroke
Subdural hemorrhage