Hello, I have an older hen she is around 8 years. Barred Rock. She has always shook her head some down through the years but, lately she shakes it alot and sometimes she has like a liquid come out when she shakes it. When she eats its like she has to lift her head and get her food down. When she lowers her head to get food thats when she really starts shaking her head. I have looked in her throat and i see nothing. Im not sure what to do. I have put vitamins and elctros in the water. The liquid is clear so im not sure of infection but i know something isnt right. she stands around in the sunshine alot lately to. Can anyone help??