I have discomfort under my ribs on the right side, down to my low abdomen, and also the lower side of my ribs on my back. I have always had a tender area on my lower abdomen, which gets worse before my period, usually. However, this pain is like I just got a stitch in my side from running, just a dull pain though. It has travelled around my back before, but now it just feels like one of my ribs on my back is bruised. Any suggestions?