If I didn't hold my baby upright after feed she eventually vomits when I bedding her flat on her back. When I tried to burp her she felt uncomfortable I tried with different position but still she felt uncomfortable. Why it is happening? And what to do?

A. Just keep rubbing the bak when you hold the child in the upright position that’s actually very comfortable for them and still if the child is not burping and if the child is uncomfortable and put the child to the bed then always prefer the sideways not on the back as that would be comforting for the child