petal, jackson has bitten down on my nipple too, he does it when he's full - and boy do those little gums hurt! He also pulls back on it which i have noticed is when he has wind.... but it sounds like you have the wind thing covered... perhaps you could ask your child health nurse about it if you're seeing one? With time etc, he usually feeds for about 25-30 minutes, i usually only feed from one side, because i was told one side for each feed but the child health nurse i'm seeing said that if he still wants/needs to keep going and my boob starts feeling soft (or "empty) to switch sides... I maybe do that every second feed to finish him off, and then next feed i start from the last boob used, if that makes sense. I wouldn't worry too much about all that though, they seem to know how much they need to take etc, and if you're getting alot of wet nappies throughout the day you're doing great Every baby is different.