Rhode Island Red 8 months old. Not sure if she's laying, we have 33 hens and can't always keep track of who's laying. Noticed her symptoms 4 days ago. Pale comb and wattles with purplish tint. Yellowing face and vent area. Standing around allot and moving slowly. Eating and drinking is minimum. We have been syringing her also. I did bath her multiple times and liquid calcium to rule out egg bound. Also no mites or worms present. She's fluffed up and keeping her head against her body. Small amounts of runny green and white poop. No open mouth breathing. We brought her inside 2 nights ago. No feed changes and no new birds brought in. All my girls were raised together. She's the only one with these symptoms. We do ACV with every other water change. They get fresh veggies every morning and every few days we add garlic and cinnamon. Cracked corn is given in afternoon as a treat. They have layer feed 24/7.