12 week old polish started with sudden onset of ataxia with neck twisting and jerking 6 days ago. Progressed to sitting to straight spastic legs. Wings work fine as she tries to fly. Legs are hypertonic. If I prop her chest to force her legs in the correct position she tries to run and move them correctly. She is eating and drinking. She’s bright eyed and currently on all vitamins. The vet has posted her case on a national vet board. He does not think it’s Mareks. To me it looks like vitamin E deficiency. Any thoughts. Thank you.