Thanks!!! I'll work on all this tonight. I don't have any data for a spreadsheet yet. I think she will get the Freestyle Libre this week, or if the vet is real busy, next week.
A very positive thing with this kitty is that I was able to back off on the phenobarbitol dose, and her seizures are no worse after 3 weeks. She's much more active now as her phenobarbitol level slowly dropped, like even 10x more, and that should help her diabetes. That med is a confounding factor, and can be raising her sugar. The vet said, she needs the seizure control and we will have to just deal with it. The vet still isn't sure my 2 cats are out of the woods yet with the toxoplasmosis brain damage.
This kitty is only 6. I hope she will go into remission from the diabetes. The vet thinks the seizures will probably be permanent. Hers are only facial twitching. The other kitty has some front limb motion and his jaw snaps sometimes.

He will need another dose increase.