Just to answer a few of these, My condition has been confirmed through Electromyography. I also have a compression of my left ulnar nerve, which actually may be the main problem. I use a strap that attaches to my belt in the back, instead of a traditional neckstrap, and the EMG found no neuropathy in the neck. I went through a whole thing about 10 years ago, with tendonitis, and totally overhauled my technique, and felt pretty confident that I was as relaxed as possible, so I'm a little more frustrated about finding the cause of the problem than anything else. Any cure is only going to be temporary, unless I stop doing whatever caused this. The water thing is very interesting, since I drink a lot of sodas, and generally have a beer or five after the gig at night.
Anyway, thanks for the advice. The more responses I get, the better, even if they're saying all the same thing, in order to better weigh my options.
Thanks,
Shannon.