Just a bit over 2 months on HRT and I have little firm areas that have begun to grow beneath my nipples. I'm guessing this is what is commonly referred to as breast buds. Cool. But, holy cats, they are super sensitive and the slightest touch or pressure hurts!
I read all the threads I could on here about this kind of thing before starting HRT, and of course the endo warned me that breast tenderness can occur, but until I experienced it I didn't realize how painful it can be. I really have to be aware of what I am doing and where my nipples are or else I can have good shock of pain if they get bumped or brush up against something.
I guess I can consider it kind of a rite of passage in womanhood.