i too have been having chest pains. it started out with a very short (3-5 second) sharp pain that would go away, and just yesterday started doing something new. the pain is on my right side, just under my ribs. if i slouch or curl up, the pain goes away, but if i sit up straight, or try to breath deeply, it comes back. also, i've found that if im lying on my right side, the pain is completely gone, whereas if i lie on my left side, it hurts really bad. the sensation i get is that there is something heavy hanging by my lowest rib, and when i lie on my left side, it pulls down. like, an organ in there is barely attached to my rib, and whatever its attached with it breaking.