those symptoms all fit in with sfn. Unfortunately calling it that, won't change treatment or find the cause. The biopsies heal well and leave small circular scars, so that isn't a big deal, but all they will do is prescribe neuronitin, lyrical, or tricyclic antidepressants or other anti seizure drugs to try to reduce the nerve symptoms, which is probably where your options are now with the diagnosis you have now. Have you already been to a rheumatologist to get worked up for autoimmune disease?