On 3/15/71, after 5 day bout of vertigo, right ear ache, and difficulty ambulating (secondary to the vertigo) she sought medical attention and underwent an audiogram which reportedly showed a 20% decline in low tone acuity AD. She complained of associated tinnitus which she described as a "whistle." In addition, her symptoms appeared to worsen with changes in head position (i.e. looking up or down). The symptoms gradually resolved and she did well until 8/71 when she experienced a 19-day episode of vertigo, tinnitus and intermittent headaches. She was seen 9/14/71, in Neurology, and admitted for evaluation.