My poor daughter has been complaining about pain in one of her breasts for a while. She is a decent size but I suspect still growing... Her painful breast is now noticeably larger than the other one. Last night the pain was so bad she couldn't sleep and had to take Ibuprofen. Does anybody know if this is something we need to go to a doctor about? Is it normal to have 'growing pains' in your breasts? It is not something her older sister had I can't remember having pain either (apart from when pregnant).