I just got my bearded dragon a little over a week ago and I've been told before when they get stressed their underside darkens. Until today he's been fine he was light colored underneath and acted fine, now he darkened up and I dont know why. I did make some changes to his cage which might be the issue I moved things around in his cage after I cleaned everything, removed the reptile hammock I got because a friend told me they could catch their claws on it and tear them out, and I decided to switch over from feeding him in his cage to feeding him in a separate container with a large about of crickets for 15 minutes. I don't know how to add an image to the post since I'd like to show how he's looking.