Awww hope she is better soon.
Gosh, that must have been a terrifying moment or three for you! Glad the vet had something to ease her discomfort.
Once I almost had to put down a greyhound because he hurt his back so badly slipping on a tile floor that it crippled him. No oral painkillers helped at all. The vet's last-ditch effort was to shoot him full of prednisone, and by golly, it worked like a charm. By the next morning he was almost back to normal. He did recover, and the problem never returned.
I hope the outcome is as positive for Sully.