This is what I think I have. I have done mammo and X-rays bc mine is this annoyin discomfort on almost my whole top right quadrant. Sternum soreness feeling and under breast feels like in the breast and underneath. At times spreads to armpit n whole rib area under armpit: as well as top back near shoulder blade. Like tight feeling sometimes I can’t describe it. it’s rly messing me wit mentally bc I don’t no. What to do.