
UGH!!
You're not alone! I've had 3 major bouts of Vertigo over the last 15 years and they are a nightmare for sure. The first one the doc attributed to a viral infection. The second, which happened 2 years ago, I never saw a doc for and self-diagnosed as positional because of the predictability of how the spells came on, (tilting my head to one side when I tried to lay down) The room would stop spinning in about a minute after laying down, as long as I didn't roll over. I was okay in the daytime if I was careful. It lasted for a few weeks.
The last one which happened last fall was the mother of all. I also have panic disorder and the vertigo triggered a non-stop 8 hr panic attack with constant vertigo. It was right up there with one of the worst experiences of my life. I went to an ENT who said it was not BPV, that he wasn't sure what it was but that it could be viral labrynthitis. Viral labrynthitis can also happen while tilting in a certain position. I ended up sleeping propped up on pillows for about 3 weeks and it took a good 3 months to completely recover.
From what I've read Vertigo can be caused from many different sources. The inner ear is usually the first suspect. If it's an ear problem, it could be any number of ear problems ranging from Menere's disease to those little "rocks" that break loose. If it is BPV (little rocks) it will most likely return from time to time as they become dislodged and need to settle back down again into their little quiet space where they belong. If it is viral labrynthitis it could be a single episode or it may be something that one is prone to get again - just like some people are more prone to sinus infections, or bronchitis.
Other sources of vertigo can come from neck problems, anxiety disorders and also from thyroid disorders. Much more rarely, sudden onset of vertigo can be a symptom of a more sinister diagnosis such as stroke or brain tumor - but we won't worry about that unless our doctors give us reason to!! I have Hashimoto's thyroiditis, panic/anxiety disorder/ arthrithis in the neck from an old break, and am in menopause. So for me, it's really hard to know what causes it. All I know is I hope it doesn't happen again, but I'm not holding my breath!
The ENT told me that one of the treatments of choice was Xanax, which I already take several times a day. He had me double the dose for a couple of weeks. It didn't go away, but it definitely helped make it more tolerable.
Severe vertigo has got to be one of the most awful things to experience, especially when it's accompanied by panic.
Good luck!
Sierra