We have a 9 month old EE hen, not for sure on weight. About a week and half ago seemed to get depressed (we thought). She has withdrawn from rest of flock, doesn't go into the coop at night. She eats and drinks barely. She didn't even move today. We've checked for mites, bugs, and nothing. Her vent is getting a little messy. Not very responsive. Haven't seen her poop. None of our other chickens have these symptoms, no trauma to her. We just got and started treatment for possible worms. Gave her the water & Wazine with syringe. Will start with electrolyte water.