Welcome to the Merry-Go-Round. Dr.'s did this to me for years before I finally wised up. For all the education and degrees they have I think a great number of them don't know their @$$ from a hole in the ground. Anyway that's why I'm here on curezone, and I'm a lot healthier now than I ever was when I was trying to get any help from them!
If it's gets too difficult and costly and they run you around in circles even more, forget about the tests. You already know the answer inside of yourself what's right or not. You don't need a test to confirm what you already know.