I was worried about that although nothing in his habitat has changed. Just moved the closest vine further away from the heat lamp.
He eats wax worms regular and giant mealworms, an occasional cricket. I don’t give him many, but there are always a few the next day, some die before he eat them...
I have two veiled chameleons, one male and one female, housed separately. Both about 1 1/2 years old. The female will eat anything I put in her cage. He does not. He has always been thin. He will eat worms everyday if I provided them, but will walk away sometimes without eating them all...