Hello Cinnamon's daddy!!!!
It's great that you're going to start testing-- 7U is a lot of insulin (which insulin, by the way?). Some cats do need that much, but we've definitely also seen cats get up that high when they don't need to be there. The sooner we can figure out which is the case for Cinnamon, the better.
We don't like to give dose recommendations without seeing at least some testing data, but we can definitely help you get started with the testing when your meter arrives to speed things along! In addition to the meter, you'll need a few other things:
-- lancets to do the poking. Make sure they are large, 26-28 gauge. We've found that in the beginning, you really need the larger lancets (smaller gauge numbers), otherwise it can be really frustrating trying to get a drop of blood
-- antibiotic ointment to dab on afterwards to help the healing (I usually did this just at the end of the day after the last poke)
-- cotton rounds (or similar) to apply post-poke pressure to stop bleeding (once you have the drop you need) and prevent bruising
-- yummy treats as a reward for Cinnamon for being such a good girl for the testing! Most of us find that the association between testing and treats develops very quickly, and our cats soon come running when we get the testing supplies out!
Welcome again!