This morning my 18 week old Olive Egger was sitting in a nest box and I thought maybe she was laying her first egg but she came out for treats but ended up sitting on her butt with her legs in front of her. She left me pick her up (which she usually doesn't). I have her in a crate by herself but she can't stand and just lays with her legs to the side. Her comb is red and eyes look clear. She pooped when I separated her and it looked normal. Any suggestions?