Hello eyesclosed: I'm sorry you are feelin so... defeated(?) or should I say simply... resigned?

As you know, I have Meniere's as well although mine is so much less severe than yours. Still, I do have some small sense of what you're experiencing.
I recall having an ear tube put in my ear for an infection I didn't have. It caused my tinnitus to explode in my head. Had it not been for my pdoc putting me on Klonopin, I'm quite certain I would not be here today. It's one of the primary reasons I still see my pdoc even though I'm no longer on med's. Just the possibility that I could have a recurrence of that awful "freight train running through my head 24 / 7" experience sends shivers up-&-down my spine.
Anyway, I didn't have anything in particular to offer here. I simply wanted to acknowledge your post. I don't know what the status of your SSDI claim is. I know, in the past, it has always been pretty-much an article of faith that the initial application is almost always denied. However, if one gets an attorney & appeals, the appeals are more often successful. At least that has been the way it has been in the past. Of course, having a psychiatrist who doesn't support your claim doesn't help.

Perhaps you need a new pdoc?

I wish you well...