Hi im 26... I get shooting pain in left breast and back that comes and goes. Also I feel bloated... but the pain worries me alot. Should I be concerned?

Maybe. Without more detail it's not possible to tell whether this is a serious issue or not. If you are using any type of hormonal contraception, the pain may be serious, especially if it is worse with deep breathing and you have shortness of breath or coughing up blood. The best way to answer your question is to get seen by a doctor in real life. Call your doctor and make an appointment 2day if possible.