One of chickens that was laying might be having a problem. She was sitting in nesting box on eggs and I would have to make her move coz I thought she was probably brooding. But she has not laid for at least 3 days and today she was sitting in there and I picked her up and only protest was ruffled feathers which is odd as she has not been one to allow being picked up. I’m thinking she might be sick? ...or egg stuck? Any advice?