Are you able to test during the whole of this cycle?
I would get a +1 and a +2 to start with and then further tests as needed.
Next time you get a lower Preshot, stall, don’t feed and test again 20 minutes later to see if the BG is rising.
When you test like you did last night at +3 and you get a lower BG then the Preshot, always test again to check that the BG is not dropping further. It dropped further last night... we don’t know how much... because the AMPS was lower today.
Can you get your signature set up please? It only takes 5 minutes, then you can put your SS at the bottom of the signature. It gives us vital information. Go to the top right of this page and click on your user name. Choose signature then tell us your and your kitty’s name, date of Dx, type of insulin and meter, type of food fed, any illnesses or medications. Then save. Thanks.
Here is a useful link for new members.
http://www.felinediabetes.com/FDMB/threads/new-how-you-can-help-us-help-you.216696/