On a side note, I have a goose with a nervous disorder who stumbles when he walks and becomes so uncoordinated that he just falls over and sometimes has trouble getting back up. He still eats and drinks normally though. The vet said as long as he keeps doing that, he should be fine. I tried changing his food, giving him vitamins in his water, etc. but nothing helped. He had it as a baby though so since he was born with it, it can't be fixed but he is loved just the same. Some birds just get it. Sad to watch them stumble about, I know. It may not even be what it is or she would have probably shown symptoms by now. Have you looked into Marek's Disease? It is also common with chickens. If they were vaccinated for it though that shouldn't be what it is. Early symptoms of Marek's is incoordination & loss of movement followed by paralysis and loss of appetite. If she is eating and laying then it may not be too serious.