So yesterday I was taking my dog for a walk and I noticed one of my hens in the neighbors yard. I took the dog home and went to check on her cause it was around 7pm and all the other hens were heading towards the coop. (I lock them up at night, the area I live in is full of predators) As I went to pick her up she ran and hid under a bush. Her running was more of a staggering drunk like run. I got her from under the bush and noticed a pretty big cut on her head, just in front of her comb. I loaded it up with neosporin and grabbed some food water and an old blanket and put her in the basement. She has eaten very few pieces of food I didn't notice her drink yet, but she could have I don't know. Today while spending time with her she seems top heavy. I picked her up, put neosporin on her head and when I set her down she kind of seems dizzy and tips forward. Her chest seems big. The bone in the front seems like it may be bulging out, but when I push on it, her head goes up and the sinks back kind of like the other chickens. She mostly just sits or stands around and does a lot of resting. If she's not going to make it or if her bones are messed up I just want to put her down. She doesn't do a whole lot of squawking or clucking unless I move close to her in a quick manner. Ideas?