would really appreciate any help. hurts to type. im in a lot of pain in my right arm. had this for a couple of years now. it comes on after after minimal exertion. feels like lactic acid which usually affects my legs but now its my arm and is practically everyday. i need to go to a necessary appointment in a few hours. is there anything that can alleviate the PEM/pain? ive had an epsom salt bath but feel no different.