Since
@FrostD suggested holding the dose, I'd stick with the 2U for now. We just want to make sure if his highs now are due to a bounce, that the bounce is over before deciding whether to increase or not.
Bounces happen when 1. they drop too low, 2. they drop too fast, 3. they drop into numbers their body isn't used to anymore (or any combination of all 3). The liver releases stored sugars and hormones to bring them back up so all you can really do is wait for those sugars and hormones to work their way out of his body and that can take up to 3 days (6 cycles).
How often are you feeding?
It's also possible that the Young Again is keeping him high. Even though it's advertised as low carb, some cats react to it just like if it was any other high carb kibble. Is there any chance that when he dropped into the 100's he didn't eat any that cycle?[/QUOTE
He doesn’t eat a lot of it. I give him one or two cans of tiny tiger twice a day and don’t take it away from him but he doesn’t eat a lot. I’ve been putting water in it like recommend and he mostly drinks the water out of it and sort of grazes. I use a protein powder scoop(the ones that come in the container) and hive him a scoop of the young again once a day. He’s acting better. Not as lethargic. Climbing on the coach, begging for our food. He talks a lot. Let’s me know when he’s going to the litter box, when he want food etc. He knows after I check his sugar it’s food time. He was eating the same thing every day. I do alternate with 9 lives but he doesn’t eat much. Likes the tiny tiger better.