Unlikely to be any true ‘damage’ I’d say if you’ve had the usual MRI/CT Scans come back clear. Brains are really well protected by the skull and if you’ve never landed on your head in an accident. And only yesterday I saw a TV News item showing pigs brains cells showing signs of restoration when provided with blood supply again four hours after being removed from dead pigs so brains must be pretty tough organs. Ears could be causing a problem more easily but if you’ve had All Clear on tests, would that be?
I guess it could have taken that long to leave your system entirely and now you are on your own with symptoms and no meds to control it.
Wouldn’t that be great. We all wish that but it’s a rather long term option. Short-term might be best to find another med to try. Nothing is likely to get you to 100% but I know I’d soon relapse if I quit mine. Helen