For the last five months, I've put my Lantus-time blood sugar numbers into a
pie chart. These are mostly the first reading after I wake up in the morning, although sometimes I am up hours earlier; then I do have the chance to correct before Lantus time. When I first started this pie chart, it was easy to see my numbers gettting better and better, but not anymore. I keep track of this number in particular because my numbers in the early morning tend to plateau- when I don't eat breakfast and I check two hours later, my bg is within 10 points, even if I've been running around. Then around 10 or 11 in the morning, it'll start fluxtuating, bouncing down and up, breakfast or no breakfast.
I chose to analyze my Lantus time numbers because I see them as somewhat representative of what happens overnight. I consistantly take a reading at that time of day everyday, whereas I don't consistantly test at any other time of day. This is a pre-breakfast number around 90% of the time. It is unlikely to changing much because it follows hours of not eating, with no excercise. The lowest number I've ever woken up with in the morning is 66. The highest during this period is 293, which followed a nightime low that I overcorrected by a long shot. I'm sure that, before I started taking Lantus, I woke up above 300 dozens of times.