Tanichca
Sparkle Magnet
I had a bird like that once, and she had all the same symptoms. This happened to her because she got bit by a black widow living under the coop. There wasn't anything I could do, and after 2 weeks of being semi-paralyzed and me forcing her to drink from a syringe, she flopped over and died. Check for spiders and take her to the vet, soon!