Just being SUPER blunt- I would fill out what Beman has sent. I would not force feed yet until problem is solved you can do more damage if they have a bacterial issue/ eye issue/ RI issue, and it goes undiagnosed. JMHO fix 1 problem and the other could be solved on their own.

It is important to get info and pictures or seek vet assistance for the "unknown". Time is so important and just in a day or so we have:
1. vit deficiency
2. habitat unknown
3. possible respiratory issues
4. eyes closed
These all can be one issue or all separate issues. We are here to help.

Please don't take my direct questioning or others wrong. Some of us have corrected these issue and only want the best for you and chameleon.
Thanks for your understanding.
When you say "has not eaten in a while" how long is that? Reason I ask: They can go a few days without feeding but not to long before their might be digestive issues. During the Winter I can go a few days (2 to 4) without the Chams being interested in food but temps are cool so digestion is slower.
Just checking your original post. Warm or to hot there are a few things that will happen.
1. to hot can burn the skin and quicken dehydration
2. To hot or to warm will cause your chameleon to open his mouth and turn bright colors (veiled and jacksons not sure of others).
Just extra info: 70 would not be to hot and it would be a little to cool for basking sight.

Hope this helps.