My favorite chicken is showing balance issue, head shaking, and keeps trying to preen but doesn’t seem to have the coordination to. Please watch to the end of the video to see that. The back of her comb is a little blue and her crop is full- which is odd for her earlier in the day. She doesn’t seem lethargic and is still eating. I gave her Vitamin E and have been massaging her crop in case it is impacted and causing nutrient deficiencies. she is only 5-6 months old. just started laying. eats Nutrena later feed and was vaxed for marek’s as a chick