Breasts, Swollen Nipples Sore Nipples And Swollen Breasts?

Sore nipples and swollen breasts? - breasts, swollen nipples

My breasts have never been sensitive before and during the last two months, which were very painful. Now my right breast is swollen and has a visible mass of a little hard on him. persay world is not only a very soft. I'm on my period, but had not yet these symptoms before, and I'm not pregnant. Please help.