Hi Becky I'm glad you're seeing a doctor soon. If he cannot find the reason, or can't help, ask him if it would be ok to see a chiroprator. I have a friend who has 'positional vertigo' About 2-3 times a year she sudden gets really bad attacks of vertigo. (can only crawl on the floor - totally unable to stand without vomiting and passing out) One visit to the chiroprator, and she is good for months until the next attack. Have no idea if this will help in your case but it may be worth a shot if nothing else works..... Good luck and keep us posted. Maggs