Hi Marci,
Sorry I've been AWOL for a while. Also sorry to see you struggling for Buddy. I hope we can help.
I noticed on his S that there are times when you are giving late shots or early shots, and by as much as 3 hours either way. That could be a reason for his unstable BGs. He is getting good responses from those doses around 1U, but still climbs unexpectedly, which says to me that Levemir isn't able to work properly. Working properly means maintaining those lower BGs more level. Since the shed is sometimes wonky, it's not able to do that.
I'm not telling you you have to hit his shot every 12 hours on the dot. I know how hard it is to manage insulin shots with life. But when you know you have to give a later shot or an earlier shot there are things you can do to help maintain the shed better. Split doses extend duration for those late shots and lowering the dose by 10-15% can prevent the shed from causing a low when you have to give earlier shots.
Tonight is the perfect example. We need to extend duration tonight, so a half dose should be given at the normal shot time, then another half dose an hour later, so that when you change your clocks back, the time until the next shot is due will be 13 hours from when you actually gave it but the clock time will be the same time as before.
You can do similar to get him to +15 when you need to. Just don't change your clocks, that might cause a problem.
If you want help understanding what to do, let me know. I agree with Sheila that changing doses too much can be another issue, but that is what I'm telling you to do in essence! Really it's manipulating the shed is all, a bit different than going back and forth by .25U or so.
And I believe we've discussed his need for a dental. Bacteria load can also make BGs hard to manage.
Are you getting ketone tests in? Those are essential when you've got these numbers going on and the possibility of an infection could be there because of his teeth. Don't mean to scare you, just want to keep Buddy safe.