I just recently gave birth july 18 2008 and about 2 weeks after I noticed this pain in my chest. I do not breast feed so I know that it is not related to that, but it is on the right side and it almost feels like its my rib. When I vacuum using my right arm it hurts, when i lay a certain way it hurts or if im lifting something it hurts. I even sometimes wake up in excruciating pain. It doesnt hurt to breath or caugh, so I dont think it is anything more than a muscular or bone problem. Any ideas?