Hi Robert,
Like Jim has mentioned, sorry to read your story, but you have come to the right place to share and learn from others. Let me tell you a little about my experience to help you with some of your decisions. I had a small AN growing on my 8Th cranial nerve very deep inside my head near my brain stem. My symptoms were full vertigo attacks. I would go into complete spins, they would last 1-3 minutes, every few days. My attacks became more frequent, that lead me to ENT, MRI and in a short time I chose surgery. Because my tumor was small, I chose the middle fossa approach to try and save my hearing. The hearing works, although the sound is somewhat muffled. The surgeons also severed my vestibular nerve in the hope of stopping the vertigo attacks. ( Vestibular nerve is the balance nerve). It took me a very very long time to recover, and to get that dizzy, wonky feeling out of me. What I was told, the tumor was small, therefore your brain hasn't had a lot of time to compensate. It took me two years to feel the changes to the symptoms I have mentioned, and the ones you have described. I too have a terrible ring ( Tinnitus).
I don't know much about your procedure, but here is what I can say that you could do now to help yourself. Get on a diuretic. Stay away from sulfides, nitrites, MSG, processed meats like cold cuts and beacon. Stay away from caffeine and alcohol. Try to get quality sleep, and ask your doctors about taking some vestibular therapy.
I hear your pain Robert, it's no fun, but you have to seek out all the help you can, and work on making some progress. Continue to access this site, there are many here who have some sound experiences to share. I'm sorry for the long post, I hope it helps.
God Bless,
Bob