If he's pooping every day, I really see no big problem, just try upping the temps a little bit and call the vet. My beardie now that I'm feeding him more, sleeps pretty much all day and doesn't poop every day.

If he's been checked for parasites before, and didn't have them, he probably doesn't now, but many reptiles can live with parasites for their entire lives, while others, the parasites start to have an effect on them sometimes.