i am experiencing consistent itchiness in my right breast. it feels like my tissues are itching and i am rubbing my breast to ease the irritation. i recently had a mammogram and was advised everything was okay. i am not on any new medications so i can't understand this new situation. the only medication i am on right now is Linzess for IBS. i have been on this medication for over a year and have not experienced any side effects such as this