My three week old daughter has now been latching to the breast sucking until letdown and then pulling off and screaming. I believe this is due to an oversupply, so this afternoon I tried the biological nurturing position and she cannot latch like that it about kills my already sore nipples! She can't get her mouth opened wide enough to get a deep enough latch as it is and I am beginning to think she may actually be tongue tied because her tongue makes a heart shape when she lifts it and she does not stick her tongue out past her lips. Will see dr about tongue tie, but what to do in the meantime???