Hi,
I would agree with Dillinger and think your basal is at fault. Unless you're having huge amounts of carbs without knowing it!!
Don't know wot basal you're on,but while I was on Lantus had unexplainable highs ( and lows), and only since changing to pork have acheived stable control. Even if I miss a meal, or have a low or no-carb one, I have NO uneplainable highs.
This term 'liver dump' seem to be churned out on this forum more regularly than the liver churns out glucose unnecessarily
Having been type-1 for nearly 21 years, I can relate to getting highs due to stress,emotional upset and sometimes following exercise, and the rise in adrenalin causing rise in BG due to this. This is well documented and the reason for it explainable.
I experienced 41/2 years similar to what you describe;of not knowing what was causing my erratic and inconsistent BG control, I discovered that the source of the prob was not me( as I thought), but the Lantus just not working. I threw out many bottles of Humalog,thinking it was faulty, when it didn't seem to work on some days,but the humalog was not at fault. Discovered this because I stayed on it when I changed my basal to pork. For 6 months I had no probs with Humalog, that I had when I took it alongside Lantus.
If you've considered everything else, and still drawing a blank, consider your basal,(which I presume is one of the "L"s) to be the prob, not the Novorapid.
If so, you'll be joining an ever-increasing club.
Best of luck
Jus