I can see the SS now Taz but it needs work done on it to get rid of all the extra 0 in all the columns. It’s really hard to read the numbers with all those 0s there. And there is no colour in it.
It looks like you are not always taking a reading before giving the shots. Please always test first to see it is safe to give the shot.
And if you can get at least one test in during the PM cycle as it is just as important as the am cycle. Try getting a before bed test in each night. If that test is much lower than the preshot I would set the alarm and get up and test later to see that the BG hasn’t dropped too low. Cats often drop lower at night.
You need to pick a dose and stick to it for at least 3 days, unless he drops too low in which case you would reduce the dose. Chopping and changing the dose based on the preshot is not how Lantus is used. The dose is based on the nadir or lowest point in the cycle, not the preshot numbers when you are using Lantus.
I would go back to 1 unit and stay with that dose for three days to let the depot settle before you increase. If the BG drops under 2.8 (50) on TR or 5 (90) on SLGS you reduce by 0.25 units.
Have you thought about which of the two dosing methods you would like to follow?
The tight regulation or the start low go slow method.
Here is a link to the two methods. Choosing one makes it far easier to follow and you will find it should settle things down..
http://www.felinediabetes.com/FDMB/...-low-go-slow-slgs-tight-regulation-tr.210110/
Did Nelson have any ketones in his urine when he was diagnosed.
Why do you think he still has a UTI?
Some of those higher numbers could be from bouncing. But we can’t tell until you are getting tests in during all the cycles and all the preshots. Cats can bounce from dropping too low, dropping too fast or dropping lower than they are used. The body then panics and dumps stored glucose and regulatory hormones into the system causing the BG to shoot up. Bounces can last for up to 6 cycles and the is nothing you can do about them but wait them out.