title: Headaches with positional nystagmus.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002490:Central Nervous System / Q000503:physiopathology; D002648:Child; D002908:Chronic Disease; D004423:Ear / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006261:Headache / Q000503:physiopathology / Q000628:therapy*; D006320:Hearing Tests; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D009759:Nystagmus, Pathologic / Q000503:physiopathology / Q000628:therapy*; D011183:Postoperative Complications; D011187:Posture; D012008:Recurrence; D013649:Taste; D014653:Vascular Headaches / Q000503:physiopathology / Q000628:therapy*; D014724:Vestibular Function Tests