KF - You and I have very similar symptoms by the sound of it. I'm no nearer a conclusive diagnosis, and am resigned to the prospect of seeing many more ENT specialists. I suspect that issues of this nature (and indeed those witnessed in other threads such as Stilton's) are fantastically difficult to diagnose, and doctors often feel that investigation causes more damage than good.
Sorry to sound pessimistic, but I suspect you *may* need to see a lot of specialists to get a conclusive diagnosis. My tip is to trust your instincts; nobody knows your body better than you. Get a holiday and see what that does.
Also, try a Google on 'TMS'. I'm not totally convinced, but I believe Sarno's theories have some truth to them in a common sense kind of way.
I'm away for a couple of weeks, so don't think I'm rude if I can't reply. Excuse typos as this is written in a hurry.
(Not Test Match Special btw)