Sometimes chickens act/ or get sick with something that is unexplainable, I've never seen or heard of anything like this. The advise that I've given is what i would do in this situation, this year alone many of my chickens have gotten sick or been sick when they came to me. I have done A LOT of research about sick chicken care. And to save you guys the valuable time of researching all of this while your chickens lives are on the line, I post what I have learned. I hope my advise has helped and if you guys keep me and the others posted we may be able to help you even more. Good luck both of you!
-Roxy