Three days in with a cgm and I've discovered: Running for 50 minutes elevates my blood sugars for 8 hours. I've been doing this daily for two years without any knowledge of the consequences. Eating breakfast spikes my blood sugars for 6-8 hours. I think my insulin is lower than low overnight so having only cream with coffee elevates what little insulin I have so that lunch (which is my breakfast) doesn't spike my blood sugars. Heavy weights drop my blood sugars like a stone. Who would have thought? It shows the danger of making decisions without enough data. Maybe my next 3 month HbA1c will be finally under 5.7%.