Thanks. I read your brief post on the thread that I linked to in my initial post on this thread. I'm not sure if there's anything else on some other thread. I guess I'm most interested in your experience, the kinds of physicians you saw, the test they ran, and the results. My goal, if I were to go, would not be to repeat the many tests I've had done, but rather to run some perhaps rare tests not available here and to push toward a diagnosis of the cause, so etiology of the SFN rather than diagnosis of the SFN itself, which has already been done and is itself a symptom of a larger or prior disease process. Thank you.