4 weeks ago, my chicken had a bunch of fluid, almost like the fluid surrounding the yolk, come out of her, except there were no shells or yolks. Throughout this week, we have noticed that her butt is matted with poop and dirt. Today, when we went outside to check on her, she was laying down in the corner, not moving, heavily breathing with her eyes closed. We approached her, and she opened her eyes and looked at us. We gently picked her up, brought her into a pen inside, and are keeping her warm. She does not eat, but I have managed to make her drink some water with a syringe. She is a female Lavender Orpington, purebred, with a normally straight comb. At the moment, her comb is flopped over, and she isn't moving her feet. Does anyone know what is wrong, or how I can help here get better? I really don't want to lose her, she is one of my favorite chickens. If the description isn't enough, I will post pictures.