My provider (neurosurgeon) said he felt I had more than one degenerative neurological problem. The small fiber diagnosis did come from punch biopsies of my lower leg. I have severe lumbar spinal stenosis and had a decompression surgery last year and there was no change. I should mention I am not diabetic.. I've had the EMG tests of my upper and lower extremities, twice, both negative. I have an artificial hip on the R side and my hips are fine. I've been told by the back surgeon that my gait problem is not coming from my spine. I've done PT but it's very problematic since appts are hard to get & are very brief, so I do exercise with AgeBold and other online videos. I've had these problems for years, at least 15, and I'm still not getting relief. I'm a retired RN with 50 yrs. experience, which helps me navigate what it going on. But there's more than one issue, and I'm going back to my neurologist for another consult.