Any experiences of this? Im recovering from flu that I had over Christmas, so potentially a pulled muscle or similar? Pain is only on the right hand side, I’m not concerned about it being anything heart related as it’s very much over in my armpit, and the back of my shoulder. Upper and lower parts of breast sore (where your bra would sit really) but only on the right hand side and feels deep and constant rather than sharp. Im confused and don’t know whether to bother my GP with it? Any thoughts please?