Thanks everyone for the quick replies. In my hurry to post my situation last night, I neglected to say that they only treated half of my tumor with the Gamma Knife which they did not tell me until the time of treatment. I had difficulty with balance, headaches, vomiting after the GK and finally, now, they are saying that the symptoms I had were related to the GK, including trigeminal neuralgia which was to the point of being unbearable. So they have upped my Neurontin which seems to be holding the pain. My wife wants a third opinion. I am 59 years old and first noticed that I could not hear as well on my cell phone on the left side. I had just had my yearly physical in February, an exam by an audiologist, and by April, 2004, I had no hearing left on the left side. I went to an ENT who sent me through a battery of tests and then on to Houston to the specialists, about 175 miles from where we live. I worked for the railroad and so thought that my loss of hearing could be associated with my job. Anyway, now that I have been disabled for two years, the railroad is putting me on Medicare with my insurance as secondary. Has anyone had the surgery and on Medicare and how did they cover you. It goes into effect October 1, 2006, and I am supposed to get paperwork in the mail before then. Anyone who can help with information on this would be greatly appreciated.