According to my Dexcom data, in the last seven days, my blood sugar has been below 200 mg/dl 97% of the time. I haven't had a real low (I've been down to 58 and no lower). My average for the week is 124. My standard deviation for the week is 36. I stayed below 200 on five days.
Over the last three months, I've spent only 90% of the time below 200, and have been above 200 about 5 days per week. My average is 134, I spend 3% of the time above 240, I go below 55 on the majority of days, and my standard deviation is 48.
That means that this week, my rate of the kind of hyperglycemia that gets you warned about ketones- numbers above 240- has fallen from being something I experience for an average of 45 minutes per day, to none. My rate of real hypoglycemia (below 55, say), fell from being something I experience for an average of half an hour per day, to none. The amount of time I spend in the 80-200 range went from 80% to 91%. My average fell ten points.
Did I do anything differently? Nope.
By the way, the title says "these kinds of weeks" but the last one as good as this was probably September 2011.