Hi, i'm new to mumsnet,hav 2 children, my 1st was born at 37 weeks and struggled to suck so I ended up using avent nipple shields to help him latch,managed to wean him off them and onto the breast at about 3mths, now hav a 16 wk old son who I started off breastfeeding really successfully without any shields, but during the 2nd week of feeding him i was in such agony that i thought i would be sick all over him, so turned to the shields during a night feed, fast forward to now, he can't feed without them as he's so used to them! Just wondering if anyone had any advice at all!?!? They seem to give him quite a bit of wind which upsets him