Recently my nipples have started being painful when nursing. My baby is 5 mo old old and we haven't had any problems to speak of until now. He still seems to eat well, but it hurts so bad when he latches on and when i first start pumping. The pain subsides after a minute or so. On one side the whole breast is tender to the touch. On the other side I think I might have a milk blister. I am so confused and not sure what to do. I pump 4x a day during the workweek and nurse the rest of the time. I read something on one of the LLL articles about altered sucking patterns when teething and that just made me have more questions. Appreciate the help!