One of my chickens was attacked either by my other 2 chickens. Her eye is swollen and she seems to be drooling. I noticed the drooling the other day and today she was drooling a lot. I separated her from the others but I'm concerned about the drooling. She's still eating and drinking. Walking fine. Doesn't want to come out of the house though. Is she sick or just tired from getting beat up? Help press she's my favorite.