I have a hen that is very lethargic right now. Her comb is hanging to the side, and she has green diarrhea. She eats a little and is still drinking. Is it worms or something more serious? I thought she maybe has vent gleet, but her vent area doesn't stink the way they say vent gleet should. Help please! I also have a hen who has developed a weird head shake, like a tic. She gives her head a shake every few seconds. She also has diarrhea, but hers is really watery with a little bit of solid stool inside of it. I don't see any evidence of worms in her stool.