Terry, this post reminds me of my brother. He is a retired lawyer and very logical. He always asks me questions that I don't want to think about but that provide me good information when I do!
I expected the first two as I mentioned elsewhere I've had a big problem with DP and fasting numbers in the last couple weeks. But the 30 was higher than I expected as was the 90. So I looked back in my log books and damn if I haven't been having runs of the super high fastings off and on for quite awhile! Denial is an amazing thing!:::smacking hard head:::: I looked at my averages by time of day and they go down throughout the day as in 157, 148, 140, 110, 106 and 119! Someone complimented me on catching the DP so promptly. I'm now giving back the compliment!
Thanks for asking this question. I really hate taking more insulin (mainly fear of weight gain) so I find rationalizations for highs even when a pattern is staring me in the face.