Sorry! Posting alot because everyone is so helpful here!
My baby is cluster feeding alot. DPs aunt came over and said baby's fussy because hes got wind from comfort sucking my breast and has been taking in air instead of milk.
My latch is fine and I have to break the suction to get him off, so theres not much 'air' going in. I also see milk in his mouth and he dribbles it when he pops off at the end, so he is getting it!
He hardly ever burps up when I wind him either, but he does have alot of farts. Could she be right?