This could hint to a vitamin deficiency or viral infection like ALV or Marek's Disease. Was she vaccinated against Marek's Disease?I guess it could be possible....they free range during the day with sheep and goats. Not sure what but perhaps. Any thoughts on what the vet said about her feet curling when I put her down? Once she's down she has no trouble walking?
Worms also can lead to neurological issues, so after finishing the Safeguard course, you could up her Vitamin B complex and Vitamin E.