I love the tracking of productivity idea. It's interesting, I also frequently use coffee to 'concentrate', but a little differently than you. I'll have tea or sometimes coffee in the morning (one cup) and if I'm not sleep deprived, that's it. If I need to work or focus on a task in the afternoon, I'll get a large coffee, clear my area of all distractions, get comfortable and try and crank through for as long as it ta…
How did you notice/know you were having serious blood sugar problems?
My old breakfasts: coffee, sometimes a sweet. Result: by noon, I thought I was starving, but it was really just extremely low blood sugar, sort of like a diabetic would feel after the insulin injection. Moody, Shaky hands, etc. Especially if I had sugar in the coffee or a second one at 10:30.
Result would be sugary lunch to spike bloodsugar back up, and similar problems at dinner.
Solution: More fiber at breakfast, less sweets, decaf coffee or green tea. Interestingly, I can now live through a breakfast like that with significantly better results, partly because I know how to get back on track, and perhaps because my bodies not in such a yo-yo type situation any more.