I would try propping her up so she isn't laying flat until you can get more advice. She doesn't look at all, so I don't see where a bit of benedryl could hurt at this point.
I wish I had some idea of how to help you!
OH my! We don't have scorpions here so I have no idea how to treat for that! It might help if you put that in the title, and maybe more people will see this post. I'm praying for ya sick chicka!