I have had this tighten sharp pain in my chest on my left side for about 2 weeks now. I am starting to get other symptoms since this has started. I now feel numbness in my left arm and shoulder and sometimes it moves to my lower back but only on my left side. I also have been noticing some small rashes all over my body they come and go. And I noticed I have been more tired than usuall. I just don't feel right and know somethin has to be wrong but the doctor i was seeing did some tests on me and said I am ok and the pain will pass but he keeps prescribing me pain killers and muscle relaxers but if nothing is wrong with me why do I need them? Plus they dont even take away my pain. Please help