First, you've stuck it out; and, Second, your last doc sure sounds like the 'CHARM"!
Getting a doctor to really be thorough in testing and believing you enough to DO the testing is such a challenge for all of us. Looks like you are not only getting the testing, but for the entire 'enchilada' as they say? I say About Time!
As you know, all folks here, know about all the different kinds of pain all these different diseases/conditions can cause for us. Please, do, keep us all up to date on how the tests all come out....Do NOT expect that all the things the doctor is checking out mean you have them all. I surely truly hope NOT! Testing in the rheumy and neuro world consists of trying to eliminate all that is 'testable' then trying to fit you/your case/situation into the best 'box[es]' for treatment. I sure hope it's soon! - hugs - j