I have a veiled female chameleon (actually babysitting for my son). For the last couple days he hasn't looked well. He is darker than normal. I came in to check on him tonight and she won't eat a mealworm. He is avoiding me and even hissing at me. The only thing different is the size of the crickets we bought just recenty. They were larger than usual. I just moved here to Virginia Beach. Ie been looking for an after hours vet that does reptiles. Haven't found one yet. What can I do?