Chameleon has white spots.

Today I realized my chameleon has big white spots on the tip of her back. I don't think she had them yesterday. Does anybody know why?

I don't know if maybe it has to do with the temperature? Because it's getting colder, and also, her basking light burned out about a week ago and she had to spend a few days under a normal light bulb..

I also figured maybe I haven't been giving her enough water? I sprayed her cage this morning and right after, she went to drink, which is something I haven't seen in a while.

P.S. She's also very unfriendly and hisses a LOT if I try to take her out or even if I'm spraying water near her (I guess it's cold?) ... =( But I wanna take her out!

I bet she is getting ready to shed.

Shed?
Come to think of it I haven't seen her shed in a while!
I'll see if that's it. If not, I'll come back and post.