My nearly-year-old D'uccle was found today with her head sticking outside the chicken house barely moving, yesterday she seemed fine and was running around with the rest of our flock. My sister told me that she was favoring one of her legs and slightly shaking last night when we locked them up. Right now she is inside, lying on her belly with her neck and head on the floor, her neck is slightly crooked, its been that way for a while. I can't get her to eat or drink but I forced some Nutri-drench into her.When I pick her up she shakes a little and stands for a bit but she is acting lethargic and really freaking me out. I bought her at the feed store and they told me she was given vaccinations for mareks and newcastle Ect. I have no Idea what is wrong.