Don't give up, Mike, there are plenty of medications which they can try on you, some have more adverse effects than others, and that depends a lot on individual idiosyncrasies. If you're suffering those vertigo attacks, you may find a benefit from any of them. If the vertigo went and now the problem is the hyperacusis and the tinnitus, then expected results are less encouraging, yet still worth trying. Some migraine treatments work really well on the migraine-vertigo pathologies, better than the meds you said you tried so far: acetazolamide and topiramate.