Hi, for the duration of our nursing, DS 8 months has intermittantly clamped down and yanked off the nipple...always at the end of feeds or when frustrated, tired and not really wanting to nurse. I always tried to stop it, but now that he has teeth, I am getting huge gashes. He also is starting to bite. I have tried better positioning, unlatching him earlier, putting him down and saying no. None of it is working....My nipples hurt and have cuts. I am using APNO but do not know how to get this to stop. I want to keep bfing for as long as possible, but not like this!