Well, this won't be much help. I woke up around 6:00 a.m. this morning, and tested at 6:45 at 93 mg/dL (about 5.2 mmol/L?). An hour later (7:45) I was at 86 (no food, just cigarettes and some oolong tea, which has a little caffeine). An hour after that I was at 90 (more tea and cigarettes, no food). So since waking I've been consistently around a "5" or so. Granted, I've been on the Newcastle diet for over five weeks . . . but my liver either didn't feel like glucose dumping this morning, my pancreas is doing way better than it used to (I remember fasting BGs of over 200) or my insulin resistence has decreased more than I thought.
I'm going to go exercise now, and I'll measure after that too, although those numbers will be even less useful. Again, probably just emphasizes how every person is different, and even the same person can be different in different days.
EDIT: after a pretty intense workout (30 minutes of cardio interval training on stationary bike, and weightlifting for chest/shoulders/back/triceps/biceps/forearm with three "breaks" during cardio for upper/lower ab exercises!) my BG was at 110. Finally gonna reward my poor body with a whey protein shake (I more than worked off the calories, and need the protein) and am also going to have a 100 calorie apple. My first Slimfast shake of the day just got postponed to noon.
EDIT #2: almost exactly two hours after my 110 post-exercise reading (and after eating my first piece of fruit in over five weeks) my BG was 95!