I predict he will come down into blue today. Hopefully green. He did yesterday- then he had a cycle of high numbers. This is not a true bounce. All high numbers are not a true bounce. I do believe that his nighttime cycles are showing a reaction to the lower daytime numbers. However, his pattern is to come back down during the daytime. You are actually very lucky because he doesn’t have bounces lasting for days. A lot of people on this forum have cats who, initially, have true bounces that last for 4-6 cycles.
Believe me, I understand the frustration and the real worry when you see your cat struggling with these high numbers and not feeling well. I experienced it myself (and as I said, I got really bad advice and that wasted six months of my boy’s life and left him in high numbers that actually resulted in a DKA and damaged his kidneys.)
The only way to overcome bouncing — or to minimize it — is to let your cat spend as much time as possible in lower and normal numbers. That’s the only way to have their bodies adjust to the lower numbers and not “panic” and release stored glucagon (a sugar) from the liver as well other hormones that serve to increase blood glucose. It is so hard. I have worked with so many people who were in this situation and they certainly had their doubts. I can link some spreadsheets for you if you like so you can see.
Also, the pattern that Arnold is in right now is very common. I am working with some caregivers right now who are in the same situation.
@Shawn & Sir Maximus can you encourage Christine? Shawn’s cat, Sir Maximus, went through a period of lots and lots of bouncing and we had to weather the storms and stay the course until finally Sir Maximus has become a very well-regulated kitty.