hi, this is Kevin a 3yr old Herman's, he (I think is a he) is eating fine, and shows no sign of distress, but I've noticed the left side of the upper jaw is split, will it grow out or is it a visit to the vet? He eats mostly salad/ lettice/kale from a bowl, he's got a uv/heat lamp on 12hrs a day (standard shop bought enclosure. Any help appreciated.