I'm having sharp chest pain with shooting pain down my arm with weakness n tingling in my pinky n ring finger, could this be a pinched nerve? i'm 29.

Could be: It also could be other things and while you don't say L or R and you're female and fairly young, it could even be related to your heart. So, call your Dr - describe this carefully and see what they advise. If there was some incident that would cause a pinched nerve, mention it in your detailed description of the problems. If other or worse symptoms develop, go to an ER. Best!