I won't bore you with my story, because I think everyone here has experienced pretty much all of the same symptoms I have.
Like you, I was very afraid to try Klonopin, but I've been taking 5mg (2.5 at night/2.5 in morning), and it has helped a bit. I don't want to stop, because I'm happy for any relief I can get. Before the Klonopin, on top of all the other MAV symptoms, I developed involuntary teeth chattering and a hand tremor (one side). The Klonopin has really helped that aspect. I'm still dizzy, and every day is a challenge, and I keep hoping for a miracle.