I'm finding bfing my 4 week old DS is still really painful. Have been to the GP twice who gave me antibiotics for mastitis. But I don't think it is mastitis as I don't have any flu-like symptoms. I suggested thrush but GP was dismissive saying more likely blocked duct. But it hurts all the time - when he's feeding and for 1-2 hours afterwards, keeps me awake at night with the pain. I don't know what to do, I feel like a big failure and like I'm selfishly putting my needs above my child's - DS seems fine, healthy and growing and loves his milk. Have tried giving formula at the end of the evening (when it's most painful) a couple of times but this seems to make him vomit more and get a bit colicky. What should I do?