It is hard to say without knowing what you are being tested for. There is allot of talk these days about how the body's autoimmune system will begin to attack muscles and other organs, but I find this hard to believe. When the body has the right nutrition to perform, it will simply work right. Rarely does the body randomly start to attack itself, on the contrary, the human body is amazingly self sufficient when it has what it needs, and its ability to self correct is phenomenal.
Without knowing too much about your condition, and assuming it might be about muscles, take a look at this eBook on muscles and see if this helps you out. You can rent it from Kindle, and it will explain some things about how the body actually repairs itself, not how it takes itself apart.
I am for more convinced that whatever your condition is, it will respond to nutrition far better than it will to a battery of drugs and tests. Best of luck-