Hello... hopefully someone can help us... our 5 week old smallest chick became very lethargic this morning so we isolated her and have been keeping her warm. She is not eating. She will only drink if we feed her with eyedropper. Tried applesause, no...... the weird thing she is doing is tweaking her neck back and forth, sort of a rocking motion but just the neck and head. Has anyone ever experienced this??? Thanks!