I have been told by my primary physcian that because Im on Prozac my breast hurt, and have actually had like a lactating which surfaced, he said that being on antidepressants can send signals to your brain that your lactating. I did have a follow up mamogram and although there was a lump like whatever after the mammogram and a sonogram I assured that it wasnt cancerous and nothing to worry about. Problem still on Prozac and no relief in any of the symptoms in the breast and I have also gained a considerable amount of unexplained weight> i take 80mgs of Prozac and 20mg of Buspar daily