Hi i am 37 years old and I've been having this pain in my right side of the back but more higher up than lower , since Thursday . I thought its a muscle pain , but now I am a bit concern as the pain is also shooting to the front rib cage under the breast . Sometime it feel ok and sometime if I am doing something randomly it come really sharp for a minute and then it stop . It almost like when you run and have a bad stitch pain but sharper . I am not sure what could causing this . It will be great if you can assist me on this . Thank you