I posted this (https://www.backyardchickens.com/t/632883/hen-missing-feathers-from-her-butt-pic) yesterday about my white rock, but after observing her today I think she might be egg bound. She is VERY swollen, much larger than the other girls and she wasn't that way a few days ago. Recently I've seen one soft shell egg and 2 very brittle shelled eggs, all of which were broken when I found them. I suspect they came from her. If she is egg bound what can I do for her? Does she absolutely HAVE to see a vet or can I help her from home? I saw her pointing her tain downward at the ground today which was the red flag I noticed. Any help or advice would be much appreciated!