My tumor size at the time of surgery was 1.3 cm. My tinnitus began in 1989. I began to have problems with my balance in 1992. Balance problems arise from the AN growing from the sheeth of the vestibular (balance) nerve disrupting signals to the brain. After my surgery I did indeed have much difficulty with just standing up, and if not for vestibular rehab of approximately 6 weeks, I really don't know where I would be today. I kept up with my vestibular exercises long after the formal 6 weeks of rehab ended. I was anxious to get back to where I was prior to surgery and following my 6 weeks check with my doctors I started back into my practice of yoga. I was greatful to be able to start doing what I had stopped due to the surgery recovery time and now am teaching yoga classes.
I have residual problems not because of the balance nerve being removed, but from nystagmus. I was recently diagnosed and this seems to be consistent with the surgery. My eyes bounce around while I am walking, but with the exception when I look in the opposite direction of the operated side, sitting still my eyes are fine. Looking back on my history I remember having much difficulty with my balance but didn't realise I had issues with it.
My husband and I lived aboard our sailboat for 7 years while we circumnavigated and I had no problems with my balance until our return to the US. Anytime I climbed aboard to go for a day sail now I see why I had so much fear and uncertainty while I was on board our sailboat. Seems my tumor was growing at that time. So, yes, I had problems before AN removal and unfortunately I still do, but this should not be the case with all tumor removals just mine. Hope this helps.