I dont know why or how but about once every 2 months I get a horrible pain in the middle of my chest where my chest plate/bone is. It hurts when I breathe in all the way and when I exhale hard it realy hurts bad right in the middle like a spike is being shoved through my chest. Sometimes it just happens when I bench and I feel a pop or sometimes nothing then I get up cough and bad pain in the chest and it last like 3 days where even if I bend over to pick something up it hurts so bad. but It hurts the most when I breathe in hard or exhale hard and I dont smoke or anything. Anybody have had this problem I have asked everyoine and they dont know what the hell I am talking about it feels like its not even a musclke. cause there is no muscle where it hurts just my chest plate.