Hey LatinoLoco, I came across an old post of yours regarding pain and muscle atrophy in one spot and some fascics with a clean EMG. I have been experiencing something similar, and I am wondering if you ever figured out what the problem with your arm was? i have had these migrating pains up and down my right arm with muscle atrophy around my forearm near the wrist. No pronounced weakness or clumsiness, though after doing things for a while, my arm feels fatigued and a bit sore. Does this sound at all like what you experienced? I am hoping you still use this site and will get back to me. Anyway, peace out for now.