I haven't been on the site for a while, but need some help. I was dx'ed with SFN in 2012. I presented with the classic stocking/glove feeling in my legs, progressing to pain, muscle spasms and electric-like shocks in my legs, along with painful feet that can not feel vibration. Then my symptoms began to change, at which point I was scheduled to see my neuro specialist. In researching I believed that I had fibro since the SFN didn't seem to match the fibro symptoms. My specialist confirmed that they very often go hand in hand and agreed I had fibro as well. Here's my question: I want to know from those of you who have ONLY SFN what your symptoms are. I would like to compare them In that way I can determine what is causing my pain. I realize that everyone is different and I have researched every reliable site, including the noted Dr.Daniel Clauw, who is absolutely amazing. I do not have diabetes. I have some spine problems but was told none of them are bad enough to cause my pain, which is mostly in my upper thighs (right now, anyway) and it makes me feel very weak, though I am told it is "the perception of pain", meaning my muscles are strong; I just feel weak. Does SFN cause weakness. It sure feels like it cause all i want to do is sit down. Thank you to anyone who can help me. I am currently on 75 mg Lyrica twice a day with Flexiril at night to help me sleep. I want try Cymbalta next.