Can you take a picture of her and post it as a new thread over in our ER section? Maybe someone will be able to help you to identify what's really wrong with her?
https://www.backyardchickens.com/forums/emergencies-diseases-injuries-and-cures.10/
Hello, and welcome! Some breed's do better in our higher heat then other's. We do have an Arizona state thread here in the BYC site, if you would like to come and chat with the other Arizona member's. You can find it here: https://www.backyardchickens.com/threads/arizona-chickens.31227/page-8107