My 6 week old DS has had latching problems since birth. A lactation nurse started me using a nipple shield because he was tongue thrusting. I've been trying to wean him off but all of a sudden he is even having problems with the nipple shield... At least I think that is what it is. I get him latched and he just starts screaming and won't even try again or does for a second and just starts screaming again. He doesn't stop crying for a while and when he does calm down I try to get him to nurse again and it happens all over again. I am very worried about him getting enough nutrition since I am not in a position to pump and store and I can't do the formula thing. Has anyone had this problem before or know anything about it???