Yes, he was green, but only 91....that's low enough to set off a bounce, but not so low that you'd hold the dose
I don't know why he'd all the sudden bounce so high....it's one of those maddeningly, frustrating and awful things that sometimes just happen.
I do think he needs the increase.....hopefully it'll get his whole range of numbers down
As for the testing, if he's leaking urine, I think it's probably a good idea to have him checked for a UTI....they're very common in diabetic cats due to the sugar in their urine.
They should be able to look for bacteria in the urine....if that's positive, they need to do a cystocentisis and send off a culture and sensitivity. That's the only way to positively identify the bacteria that's causing it and know which antibiotic will work the best to kill it