Thanks Oakiesandy - I have a follow-up with my ENT on Tuesday. I plan on asking him about a CT scan with contrast, and possibly doing an auditory brainstem respose test. I agree with you about being in tune with your body. Two years ago, at the age of 39 I was diagnosed with left heart failure. After going through 2 cardiac cath's, and having a Pacemaker put in, I've become much more "involved" and in tune with my body/healthcare. I've already received some input from the doc's on the cyberknife board. Very informative.