My hen has pretty much stopped eating and drinking. I was giving her water by dropper mixed with cider vinegar. Now she has stopped. The only thing I can get her to eat is watermelon. Green watery poops. The only reason I know that is it sticks to her fluff on her back end. I was thinking respiratory infection she looks like labored breathing and I can hear her breathing. No coughing, eyes look fine. Doesn't walk around much stays in coop till noonish then comes out. Doesn't walk around much pretty much stays in one spot once she gets to where she wants to be. I only have 2 chickens so she isn't picked on. Walks slowly. They pretty much don't lay anymore they are about 5 years old I think. Any help would be great.