What is the difference between length or non-length dependent small fiber neuropathy? I am not sure what type of neuropathy I have. 5 months ago I developed burning in my thighs and pain in my legs. Then, a week later I had tingling in my feet. Then, another week later my fingers began to tingle. Then, the next week my face began to tingle and my body bagan to twitch. The burning now is worse in my thighs, calves, and back. I feel burning less in my feet and hands right now. I don't have weakness yet. Thanks for helping...