That was some great success. So you made an example of quote:
“Never, never, never give up.”

I am also suffering from dizziness for about 3.5 years and still trying this and that. Now I am taking a break and managing it with Xanax, Meditation and Yoga. Interesting you mentioned about shoulder problem. I too have that. I have been to so many PTs and had some success with Cranio Sacral Therapist. May be get back on to some other vestibular therapist?

You took Diamox and relieved your symptoms? That is something I can try seems like. Hope you didn't have any side effects.

Cheers!