Go to A vet
Oh my goodness... I'm so sorryI took Molly in to see her vet.
Surprisingly, it was pyometra. Which confused me because I didn't read anywhere that it could cause paralysis.
He said she was too weak for surgery and started her on an antibiotic in the hopes of building her up. It did not work. Molly passed away.
It wouldn't have happened had she been spayed.
I got her when she older... I feared(edit) the spay surgery would kill her. Turns out now that's the very thing that would have saved her.