Wow, poor thing certainly looks uncomfortable. I don't know what to tell you. I wouldn't have a clue what to do for her. It seems you are doing everything you can. I sure hope she comes out of it for you.
From the looks of it, it seem like it has a bad injury probably a broken spine from fights or hit by heavy objects. Do isolate it and hope it will recover from it, there is nothing much you can do.
