My hen 5 months old in a flock of 7. Recently most of them have started laying eggs. They roam free in the yard and have always been happy and fine. Today I noticed she was making a bit of a wheezing sound with a motion that looked as if she was dry heaving. She won't move on her own but will move if you force her to. She won't drink anything either. We have had plenty of water out for them today. We live in Arizona and it's hot out but their conditions aren't terrible. I don't know what to do or how to help. All the other hens went into their coop and she just laid outside. Finally she walked up and went in but is just laying at the entry with her head out still making those weird motions and breathing sounds. Living in Arizona I looked up what chickens act like when stung by a scorpion and based on what people have said, she is having similar symptoms. I have a very small dose of children's Benadryl which she mostly spit out and started shaking her head and acting weirder. I'm not sure what else to do.