Charlotte had a good feed this morning at 4am and since then i can not get to feed i have tried heaps all all she does is pull of all chats i think the longest i have got her to feed is about 1-2 mins all she has been bringing up all the milk too, which is not really like her, she is asleep at the moment and i will try to feed her when she wakes up, but i really don't know what to do?