I just have to ask - why are you taking her to the vet to do a curve - if last night did not demonstrate it - you don't need to waste your money, let alone stress out your cat unnecessarily.
I do have to take her to the vet tomorrow and have a curve done, which I believe is to see what will happen when she is not at home- if her bg goes sky high again, then we know that stress is causing part of the issue.
Seriously, read what you wrote - why stress her out? You know the vet will do that - it does it for most cats.
Maui received many steroid shots over the years as well as ate dry food. Those two things are what caused Maui's diabetes and even though she did not have a recent shot when diagnosed, she had enough over the years combined with dry to cause the problem.
Maui is what is called a transient diabetic - and I suspect given that you have normal BG's since you started testing that you too may have a transient diabetic - which simply means - remove all the things that can cause diabetes - dry food, steroids, etc and with a little (and maybe your case) no more insulin, she will be fine and in remission.
Yes it is very possible that she won't need insulin. now that doesn't mean you go back to old ways - no more dry food and if you do steroids - be sure you have a good reason to do it and understand it could make her need insulin again.
I seriously am thinking that her bg literally skyrockets when she is at the vet and I don't believe they will get an accurate reading... We shall see
again, you don't believe it is useful - so really, why the vet visit curve?
if you want to part with a couple hundred dollars because I bet you that is how much it will cost - why not give that to me instead - Maui is going for a dental Thursday and I sure could use extra money to cover it! ;-)