If she has wry neck you can try to treat her with human vitamin E 400 IU, human B complex 1/2 tablet, and a small amount of cooked egg (for selenium) daily for a few weeks, to see if it was caused by a vitamin deficiency. Some other possible symptoms of wry neck can be loss of balance and walking backwards. In this article it has some pictures of wry neck that you can enlarge:
https://poultrydvm.com/condition/wry-neck
https://poultrydvm.com/condition/wry-neck