while eating always he vl do vomiting actions, that vl make me scary and sometimes he vl say pain in between chest.

A. Here are some other possible causes for vomiting in young children: Sensitive gag reflex: Your child may have a sensitive gag reflex. Food allergy or intolerance: A food allergy or intolerance might be another cause, especially if you can link the vomiting to a specific thing that your child is eating.