Sorry I don't have an answer. My problem is my right side and I am right handed. I have noticed lately that my fingers and wrist will move, kind of lflinch. Almost like an electrical current. When I am typing I have to back space alot to correct myself. I also have weakness but I also don't know what to do. Dr. T. told me not to exercise so right now I am kind of stuck. Trying ice and heat. My husband has this great ice machine. Wrap the pads around your shoulder and it pumps ice cold water through. Man that is heaven! Also spending time in hot tub. As far as regaining strenght I don't know. I only have temporary answers for me. Good Luck! Linda