Ive already made a doctors appt. to check this out, but my names kelly and im 19 (turning 20 in a week). last night i discovered a tiny little lump in my breast, beneath my left nipple. its about the size of a cherry pit and its just about as hard. it doesnt hurt, but i think its sore right now because ive been feeling around and touching it since ive found it. my whole boob kind of hurts.. and im just freaking out because my aunt passed away from breast cancer in 2004. could it just be a hormonal thing? im on my menstrual cycle right now. and i take birth control (levora).