Hi, I have pain under right breast, can t recall any injury to the area. I am 57, overweight, female, no breast cancer history. I don t smoke, use drugs other than Panadol Osteo. I rarely drink alcohol. Lately I have had some reflux - not usual for me. More flatulence than usual too. the pain seems to move from directly under my breast, up through the breast and sometimes through to my back. The adjacent area in my back becomes stiff and painful to move from time to time. the back issue has been longer the the pain under the breast.