Great! Your sleepless night helps us. So she has a nice, slow drop into good numbers and then bounces a little for the amps. Not a super low nadir and not a dangerous one, but a nice drop.
So, if you were a bean who could monitor carefully we might suggest upping the dose a smidge at this point - not back up to 2 units but eyeballing 1.75. That would be the more aggressive approach. Trying to see if a little more would drive her numbers down some but not too much, still giving you two shootable numbers a day. - which 2 units didn't do.
But you aren't. You have a demanding job and you are doing a great job, losing sleep to get the numbers you can. So my advice is to keep with the 1.5. She may slowly start giving you lower numbers with some higher ones thrown in. It isn't as fast as the more aggressive approach and you may have to up the dose at some point anyway, but it is the safest route. She is good ranges most of her cycle, day and night. She is below the renal threshold most of the time, the range at which her pancreas should be able to heal. You are doing a great job keeping her safe - the number one thing!
Is she feeling okay? Good energy, eating well, litter box okay?
I hope this makes sense. Today is the weird cycle when you dose late so we won't worry about it. Just keep on doing what you are doing.