i found this instead
Chameleon Not Pooping
If it carries on for longer than there is probably some issue you need to look at, particularly if your chameleon has been eating ok but still not pooping. ... If that doesn't help and you still feel worried then take your chameleon to the vet as...
Some reasons why a chameleon will refuse to eat
The chameleon is fed-up with eating one feeder insect but will accept others (e.g. too much crickets, but it will readily eat a caterpillar) Stress caused by a move, change of terrarium or other temporary harmless change for the chameleon.
Body Oder: Chameleons do not possess any oder as such but smell like rotten meat when they wipe their jaws against tree branches exuding a foul-smelling, waxy material to attract prey. ... Diet Needs: Chameleons are insectivorous lizards.