I have a 3 yo BO hen. For two days now she has been very lethargic and on the roost fluffed up. Star did come out tonight when I let them out to free range but only for a few minutes. I went back to check on her again and she is squatting in a nest box. However she is having fine tremors. I looked for lice and nobody had them. Diet- still eating and drinking Poop- white/ clear, the feathers around her vent are dirty.(This shocks me I have never seen her dirty!) Comb- blue but still warm Laying- hasn't layed in two days. She is usually constant How could I tell between being egg bound and an internal layer? She was not happy when I palpated her abdomen but I did not go very deep. She then went back to the nest box. Any ideas? If the is still the same then I will bring her in the house tomorrow. Thank you!