Hi all, I am really suffering with horrible chest pains today. I often feel this pain on the left side of my chest and worry it is my heart or my breast. I often have pain and discomfort under my rib cage but sometimes it is further up and almost in my arm pit and top of my arm. I have mentioned it to the doctor many times and they have put it down to anxiety or now my endo is confirmed they have said it could be displaced pain. It really exhausts me. Does anybody else have this?