OK, I just can't watch this unfold so I'll try once more.
OP: I am NOT trying to pick at a wound, endlessly argue with you, not trying to be mean or disrespectful, but your cham is telling you in every way he can that he is in TROUBLE. I don't think you are getting the message. You seem to think you have time to do something. You don't have much if any. By the time a cham shows such obvious signs as sleeping during the day, not eating, drinking, or being active it's in deep trouble. Chams hide their symptoms of weakness in order to avoid notice by a predator. His reserves are now empty. Now you tell us you will be gone next week and your cham will spend the entire time in the setup and location that isn't working for him. My honest suggestion at this point is to give the cham to someone who can care for him correctly or take him to a vet for care while you are away. I get it that the usual reply will be that you don't have money to do that. Sorry, your cham doesn't know this or care. All he knows is that he's miserable, giving up and may be dying. Such a sad ending for a beautiful creature. If this insults you I am sorry. Most forum members know that I try very hard to be polite and helpful even when I would love to be otherwise.