Do you ever find that your fasting blood sugar goes up without real reason that you can find? (e.g. no change in carbs, exercise, etc.)
I had been getting readings in the low to mid 80s mg/dL consistently for several weeks but this week I am back up to the low 90s. No dietary changes and same exercise but different result. And now a trend in the wrong direction...
Are you using the same brand electrodes/test sticks and from the same box/container.? Eating at the same hour, same protein sources ie animal origin or vegetable origin. Maybe you are eating close to your upper limit of prorein intake?.
Sometimes I experience some differences , but all within the allowed limits of accuracy for home testing glucometers .
I need to be be VERY VERY strict with macronutrient control to maintain good and stable BG readings.