Okay, the blood work's back and everything is normal. Cassy hasn't fallen (that I know of) since yesterday morning. If I sit on the floor, he's more apt to hang around there too. He's probably wondering what the heck I'm up to...

The vet and I agreed that I'd keep an eye on my sweet (well, sometimes) boy and bring him in if it reoccurs...

Wish us luck, please!

Thank you all for your thoughts and concerns to date, they really helped when I was panicking.