Bliss has been acting restless and cagey and just peed on the floor (she never ever does this, she normally has perfect litter manners) so to the vet it is. Probably another UTI
I'd be more worried maybe if she wasn't in such excellent health otherwise, she does NOT act or look like a 16 year old cat. She zooms around the house like a kitten still, parkour all over the place, can still jump 5 feet in the air