This am when I went to take care of the seramas in my house(basement) one of my 3mos old pullets was sitting by herself, puffed up, one eye closed. She was fine yesterday am, by the time I got home last night all were sleeping. Her crop is empty today so I know she isn't eating, I did get her to drink some water, was going to seperate her from her 2 pals but she became very upset. They aren't picking on her. she just seems very blah, no wounds no missing feathers. she looks fine otherwise. They haven't been outside and I hatched these out. any ideas?