I have a 6 month old Barred Rock bantam hen that has been moving in circles to the left for about 3 weeks now. She also twists her neck all the way around at times and has to unwrap herself. I have been giving her vitamin solution from a dropper and hard boiled egg. She can run in a straight line at times and can get up on the roost but has stopped laying and spends most of her time circling. Anyone seen this behavior before? Thank you!