Hello, I read your email with interest. I have also been diagnosed with idiopathic small fiber neuropathy mostly in my pelvis and lower extremities. I have had ever test available it seems. Skin biopsy with positive for SFN. The only evidence of disease is nerve compression at L5S1. My back does hurt but my pelvis feels like its on fire most of the time especially after defecating. I am on Lyrica which helps a bit. I bought a teeter board and that helps more. My doctors say the compression cannot cause the SFN but I don't believe them. If not, what else? Any thoughts?