Suggest Remedy For Pain And Weakness In Arms

Went to massage therapist in late July and she was a little rough when she was massaging under my left arm in the arm pit. For 2 weeks, my left arm was weak and I had no strength in my arm. On labor day of this year, I suddenly had a pain in my left side and from that day till now I have been in pain. I have no use of my left arm, and very little use of my right arm (I had use of my right arm until then and had been using my left arm until then). I have been to the doctor, had 4 MRI s, a CAT scan and am now seeing a Neurologist. They can t seem to come up with an answer. I have been out of work for 6 weeks. A friend in the medical field asked if I had been to I had MS, (I haven t been told). I get confused when trying to look up the symptoms. Can someone give me some information?