My wife got it overnight in 2009 and she was bed ridden for a month, could only crawl round the house and even lying still would trigger sickness.
Mis-diagnosis meant that she was told to rest and it should get better after a week or 2.
After going private, she was told that her balance function had been reset and that she needed to relearn it from scratch, and even then it wouldn’t be the same.
Lots of different exercises. wobble boards etc. She used a walking stick for a while.
It’s better now but if she’s tired or got a cold then her balance is effected and she has to steady herself on things, sometimes she just falls over, I catch her if I’m around but otherwise she looks for somewhere soft to land.
She rides her bike in the warmer weather as she can’t afford to get a cold head.
The biggest problem that she still hasn’t fully overcome is her dented confidence.
I’ve spoken to some people who had it for a couple of weeks and did get over it, my wife had it BAD.
So you get my sympathies, and from my experience, I’d get a second opinion and expert advice from someone who deals with this on a regular basis (that’s why we went private).
Good luck, I hope it clears quickly and naturally.