My baby girl is 9 weeks old now and for the last couple of weeks she gets really fussy at the breast. It seems to be after my letdown slows and is having to work for the milk. It is worse if she is tired. When she starts, she often pulls her head back and stretches my nipple. So also slings her upper arm as if she were a bull rider lol. It is starting to make for sore nipples. Any help would be appreciated!