My 2 1/2 year old SLW hen has had a swollen abdomen for a few days. I felt it 2 days ago and found it pretty hard. My mom did some research and found that it might be egg peritonitis. It seems to be getting softer (as of earlier today) and I'm hoping she's getting better (she's my favorite out of almost my entire flock). Can anyone confirm this? Is it egg peritonitis? I haven't found the pieces of egg yolk in her poop, but I'm still not sure. Any ideas as to what it is? I would really appreciate it!