Do any of you have an issue with breastfeeding in bed? We Co sleep and I breastfeed laying down and…

Do any of you have an issue with breastfeeding in bed? We Co sleep and I breastfeed laying down and the last couple of nights my baby has milk coming out of her nose at the end of a feeding. Is she over full or is it just a spit up kind of thing but out of the nose? I burp her after everytime she east but I'm just curious if other mommy's deal with this issue ever.