One of our hens has been lethargic and not eating for at least 3 days. She has been contracting hard and appears to be in tremendous pain. We have soaked her in warm water and lubricated her up but she didn't pass an egg. We haven't been able to feel an egg and her abdomen is soft. She is thin and her comb seems to be normal.. She did pass a worm during the spa treatment. Can worms cause these symptoms?