What did the doctor say about the fact that the tests brought on so much pain? I guess that these types of tests can cause pain adn come back as "normal"...that really is a good thing...meaning that your nerves are in good shape. But, I believe that because the tests caused you so much pain the doctor would order more tests to pinpoint the pain generator(s)...a discogram maybe.
Sorry for the run around you are experiencing.....
BTW...we all need a rubber room at one time or another