Those are very similar symptoms to my pullet's. Go read the thread. I just updated it. My pullet is getting vitamin E and selenium and vitamin B 1, 6, and 12 and a 81 grain aspirin daily for any nerve pain. We've all concluded she has a myelin sheath stripping disorder. The B-1 and 6 both restore nerve connections. The B-12 helps strengthen the legs.
This might be something you would want to consider trying. In the beginning, when she first was stricken, I treated her with three different antibiotics. Whether or not that helped is anyone's guess. Another pullet before her had the same thing, and I didn't treat with antibiotics, and I lost her.
It's been two months, and several times I thought the only thing left was euthanasia, and now it appears this pullet will make a complete recovery as she is on that track.