I probably shouldn't answer since I've managed to waste a great deal of both time AND money on possible solutions! :)
Anyway, I know I had a blood test for lyme and it came back negative. But if I remember lyme was very difficult to diagnose, so I agree with getting a 2nd opinion.
I am on a mold kick right now, and just read this article. I have every symptom on there, but I also have all the symptoms for other things like MS etc., etc. A kind doctor told me, "You don't have 40 things wrong with you--it's just one. We just have to find it." Happy hunting!! I hope we find it soon!