Welcome! First post I see! Great job getting your signature and spreadsheet set up already.
Oh the vet

. My vet was happy with anything under 16 mmol, so I understand why you are so bothered because I was too! I personally decided to take the advice of experienced people here rather than listen to my vet because I want butters to be in healthy, normal numbers. Folks here have decades of expertise with diabetic cats and they always will put safety first when suggesting anything relating to dosing. Chik is your kitty so it really is your decision what you want to do. You certainly don't have to listen to the vet. Many of us just tell our vets what we are doing on a "need to know" basis. I have a new vet now and he is very supportive of how I'm managing Butters and I just share my spreadsheet with him every now and then.
I encourage you to read this post on
dosing methods and have a think about whether you'd like to follow Tight Regulation (similar protocol as the one on Tilly's site) or Start Low Go Slow. You can post your numbers daily if you wish, and people will help you. Another one, if you haven't read already is this sticky:
new to the group? start here. It addresses topics such as the definition of "regulation', what a typical cycle looks like on Lantus, and other useful topics.
Syringes with 1/2 unit markings on them are the best you're going to get. None exist with .25u markings. If you can, I'd recommend getting a good magnifier and bright lighting. Although not necessary, many people on here (me included) use
calipers for dosing. You don't really need to worry about the lines if you use calipers. Just a thought, perhaps to consider later once you are more comfortable.
As to whether you should increase, I don't give dosing advice but I have a few observations about your spreadsheet, for you to consider:
-It's great to see you are testing before every shot! That is critically important.
-You need more data (BG numbers), especially at night when you have none. Monitoring the nighttime cycle is at least as important as the daytime cycle, maybe even more important because many cats go lower at night. Start filling in the holes in your spreadsheet with data so that we start to get a fulsome picture of what the dose is doing to Chik's BG numbers throughout the cycle. Example: one cycle, I might get a +2, +5, +8. The next cycle, maybe a +4 & +7.
-Could you get into the habit of getting a+2 on each cycle? The reason is: Lantus onsets around +2 for most cats. A +2 should give you good data on how much more you'll need to test each cycle:
If the +2 BG is lower than the preshot, it will likely be an active cycle meaning kitty will drop lower so you will need to test more.
If +2 is similar to preshot, it will likely be a typical lantus cycle and there should be a nice, slow dip and then a slow rise.
If +2 is higher than preshot, kitty may be going into a bounce and this will be a cycle that likely does not require much testing at all.
-For nighttime cycles, we often recommend a+2 and then a before bed test at the very least. You'll be able to tell from those numbers whether you'll need to stay up and test more.
These are my initial thoughts. I'll tag
@Wendy&Neko and
@tiffmaxee and
@Gill & George . if they are around, they may offer opinions on what to do with Chik's dose, or whether you should hold and continue collecting some more data first.