I woke up with a sharp chest pain. Its fine when i lay back and breath normally but when i sit up, get out of a chair, slouch over, or anything to strain or use the chest i get a sharp pain. It feels sorta like a knife stabbing me in the middle(closer to the left side). I can feel the pain extremley when i try to lay back. When I take deep breaths and breath out i feel the pain or just sitting there uncomfortably, also when i am driving and stir i feel the SHARP pain. I have felt this pain before about 4 years ago when i was lifting weights..the one that you have your fore arms apart and pull the back together facing each other,but it lasted for a min or so. Also I have felt this sharp pain when i am driving and backing up and place my right arm on to the chair and my left i twist to look behind me, but that also has only lasted for a minute or so. This time it has lasted all day and certain things i do will hurt so bad its close to making me cry what is wronggg???