A week and a half (12 days) after my period my breast began to get sore. It seemed as if it got worst after the the second day, it has been 4days now. The pain is bareable, however any sudden movements like going down the stairs to quick they hurt. The soarness started in my nipples then moved to my full breast on both sides.They feel better when my bra is off versus on. And they almost seem like they tighten. I had sex right after my period and before. I haven't felt sick, I have been sleeping better but not experiencing the sleepy syndrome. My bows haven't been normal. I don't go to the doctor until early Feb and was wondering if anyone had a clue to the syptoms?