I've dealt with the Vertigo for some years now also, my first episode was in 2001 when I had to have wife call the ambulance to take me, I was bent over the commode for an hour I was so dizzy. Ended up I had a really bad ear infection messing with my inner ear, but since then, I've had small bouts with vertigo that comes and goes. I never thought it maybe due to caffiene. I know I have to be very conscience of not getting up from a squat or when I'm bended over or I get dizzy immediately. I've got hearing loss too even though they say I test fine, but I had ear infection and my ear drum burst when I was only 7. There are some tones cannot hear and I find myself turninig my head sometimes to use my left ear.
My mom says she has been dealing with Meniere's for years, I just think she is dizzy in the head hahaha.