or jab feed karti h to nipple ko khinchti h or sahi se feed nai karti

A. But your child is four months only if your child is facing this issue in this age then there can be a possibility that your child is having its teeth and due to discomfort this is happening if you want you can start using Babyhug nipple shield for yourself to give a better grip and you can also introduce Teether to your child