So far I have had 3 boys go through this sort of paralysis. The funny thing is they took quite a long time, but all are up walking again. On of my buff Sussex cockerels is still a little "drunk" the way he walks but seems really happy, and gets better all the time. He is a big boy though, so maybe that's why. The other 2 you can't even tell. I'm sorry for your loss. Get some little chicks and give your whole heart again. It will be healing, but you will never forget your favourite girl. You can honour her by loving others of her kind. My best wishes.