DD2 is becoming a bit of biter when feeding. she doesn't do it all the time, she did it tonight and at this mornings feed, but was maybe a week or so since she'd done it previously. there doesn't seem to be any pattern to it either, DD1 did it very occasionally when she was extremely tired, but never became a big issue. Am definitely not ready to stop feeding DD2, as is only 9months, but it is excrutiatingly painful, and am very nervous when i am next feeding her.help me please.