Hi, I have pcos, I am using metformin 3 times per day ( I sometimes skip doses in between because I feel very sick). I noticed I was having a discharge from my right breast, it came out white and dried a yellowish color. It seems to happen during the night time mostly. I went to the doctor who ordered a pregnancy test, prolactin test and breast ultra sound. I was not pregnant, my prolactin was fine and my breast ultrasound came back normal. I know something is wrong because a few nights ago I woke up in the middle of the night because my breast started itching tremendously, I was half asleep, but remembered that while scratching my breast, I felt something that felt like hardened caked up liquid on my right breast. I thought is was from the discharge and my husband confirmed it the next day because he asked me about it, he also felt it during the night (it was a lot this time). I am not sure what to do since my tests came back okay. I am considering a mamogram, not sure if it will explain anything though. If anyone had a similar experience please let me know how you dealt with it.

Thanks for your replies