Sharp stomach pain, ache under breast?

[Au Revoir]

This is the third day i have had this issue abd im almost certain it is not indigestion. It hurt my stomach to breath, move, walk, sit, lay down.. Anything! My breast mainly just hurts when i inhale deeply but also sometimes when im just sitting... Its very very painful, uncomfortable, and effecting my abilities and sports and working. Ill go to outpatients when i get of work tonight but for now.. Any ideas? Thank you very much