As for the blood work as far as I know they just test the antibodies musk, binding and modulating. Any more blood work after a positive is really meaningless and the actual numbers don't really mean much as far as how severe your MG is.
A neat little test you can do is when your eye is drooping real bad try a small plastic bag of crushed ice on it for about 1 minute. If it opens up then that is a sign of MG. Another test they do is hold their finger above your droopy eye and make you stare at it and in a short period it will droop even more. I had one doctor do that till my eye almost closed.
Just hang in there!
Mike