I have been getting a pain in the upper left part of my ribs. Just below the breast. Its a pulsing pain and I can feel it coming on before it starts. It usually happens when I am bent over and do physical activities. I also have back pain. Esp in the upper back and neck area from tension and stress. I also know I strained my shoulder working out. I dont know if they are all related. But when I dont have the pain I have an ache in my back and from where I usually get the pain. Any idea what this is?