Manjusha you know better as you are the mother. Sometimes they don't burp loudly so we really don't know. I started feeding my daughter on lying down position from 40 days and I don't lift her up to give burp, I simply pat her back.

Hi<br> Please burp your baby after every feed well. Otherwise it could cause colic or choking hazard. She is vomiting the excess milk and should be burped well