Becky,
As you can see in my little signature line below I had very little time between my diagnosis and treatment, I actually knew I had the tumor about 6 months before the actual diagnosis because the Dr was just waiting for a second MRI to confirm.
Loosing your hearing isn't a given. My tumor was small as well. Part of why I went ahead and had surgery instead of watching and waiting was to try and save my hearing, instead of waiting for the tumor to grow and make my hearing worse. My surgery was almost a year ago now and my hearing is still considered normal, though it did decline a bit from the surgery. It won't decline anymore from the tumor or surgery-maybe from old age at some point LOL.
I do not wear a hearing aid and don't notice the loss for the most part. I occasionally have trouble in directionality, in hearing clearly in crowded places, and hearing my 6 year old daughter who tends to not speak up and talks very softly.
Good Luck!
~Heidi