V, sorry, that sucks. It is hard when you don't know exactly what's up. Many years ago (before they had every bell and whistle), I had an inconclusive artherogram (sp?) done on my knee. At that time, they said they would hve to do artheroscopic surgery to learn more. I didn't want to, and I never got a clear diagnosis. Guess I'm just trying to empathize. So sorry you are having this.