so I've had my dragon for a few days now, doing everything by the book, lighting, heat, food, etc. hes been eating crickets and a few mealworms here and there, and the juvenile pellets that came with the tank, although he doesn't seem interested. but today I fed him a dozen crickets, the only thing I did different was that I dusted them with calcium, now for the last 6 hours or so, hes been cooped up in his cave and hasn't come out, he hasn't pooped for 2 days now, I dont know if hes impacted, although I dont see how, I use a sand mat. his belly looks bigger than normal and I'm pretty sure his color is a tad bit lighter in shade. should I be worried? if so, I'd like some advice as far as what to do for him please? Thank you.