Adding my "two-and-a-half" cents here. Capt. Deb did great job in covering all details. I also had Vestibular Rehab with home exercises and this helped immensly to the point it should be mandatory for all patients.
One thing to mention, there are many people here that still to this day, have difficulty in malls, grocery stores, outdoors, hallways, soft surfaces and in low lighting--I'm one of them. Just recently I was getting off the elevator with my son and walking fine until we walked into a long hallway. I stumbled and ran into him. The feeling was much like I was being pulled towards him (he was on my AN side). He asked if I was alright, "Yes, fine it's the hallway is all." It had been awhile since we were together and he like so many are probably under the impression that my balance should be at 100%.
I still experience fatigue, but not to exhaustion as I experienced in the beginning days of recovery. I am 2.5 years post surgery. Fatigue comes from just what you thought--too much stimulation for hours on end with eyes and ears. 5-minute eyes closed power naps help me alot.