What Causes Heavy Periods Followed By Pain In Breasts And White Discharge?

thursday 2-13, i thought my period, was starting that morning, but only spotted. I wore a pad to bed just in case I started flowing, I woke up at 3am with blood pouring down my leg, I bled heavy for about two hours, then it was just light and now my period stopped yesterday, my breasts were very sore before i started it usually does and when i start my period they usually stop hurting, but now that my period stopped my breasts are hurting and swollen and have some white discharge, what do you think this could be?