I don't know if this IS related. But my friend had an electric potpourri burner. She had just unplugged it, so the wax was still a liquid. The smell appealed to the cats and a couple sipped from it. Turns out it's toxic to cats.

If this stuff is as strong as the other stuff my friends cats ingested, I'd get the kitty to the vet and FAST.

You'll be in my thoughts and prayers.