I have experienced vertigo twice. The first time it was only for a couple of days. My father is a doc..he told me it was a virus. Last year I had vertigo for about 10 days. my doc told me he had another patient that same day with the same symptoms, and my neighbor said she knew a couple people at work who had it, just not as severe. My doc said it was viral and would run its course as other viral infections-about 2 weeks. Your ent should be able to figure this out. good luck