I previously had this pain I am having now and I went to the hospital and they diagnosed me with gastritis. I was taking medication for the pain, then stopped. I started with the pain 2 days ago. Today its been a struggle. I am taking the medication again but its not helping. I suddenly got diarrhea this afternoon. When I breath it hurts that location. Its not abdominal pain to me. Its right under my rib cage to the left. If I sit my hand flat right under my breast that s where it hurts. Any suggestions on what I need to do next?