I have done countless tests, at great cost, all for nothing. Testing to find out what you have does not guarantee there is a cure for that, and anyhow, my allergies preclude most treatments.
I am past running around in circles with labs, medical doctors and naturopaths; at some time, you have to realize it doesn't take you nowhere, and quit.
Last one from my doc: I have told her time and again that I am badly allergic to antibiotics and that my mother died from an allergic reaction to penicilin.
A few months ago, I had a urine test done,there were a few bacterias in it, nothing big she told me, and I had no discomfort whatsoever. Next thing I get from her is a prescription for antibiotics!
I am scared to death of these people, and plan to limit my interaction with them to a minimum if I can help it.