About 2 weeks ago i purchased a male jackson's chameleon. not sure on age but guessing young adult. the first day i had him he did a little exploring of his screen terrarium but has since been very lethargic. he hardly ever moves and seems to have his eyes closed most of the time. He is no longer brown as he was the first few days, but nice light green. I have not seen him eat or drink, though i have a waterfall and mist frequently to keep humidity up and i offer him crickets and mealworms, dusted in ReptoCal calcium/vit D3 supplement. i do not handle him often. i dont believe i have any husbandry problems, being that i have a female jackson's chameleon in another terrarium that is very happy and healthy. i think he might have been especially stressed at the pet store because he was in a tank with 1 or 2 other male jackson's temporarily. Pet store guarantees physical health, being free of disease and parasites. should i be concerned that there is something really wrong with him?