19.8? Diligent, that's much too high, as are the other readings. You're not on any diabetes medication? Those readings over a period of time can damage the body organs. What does your doctor say? If you're eating a chippy butty (which I presume is a french fry sandwich?) and a bun for lunch, of course your blood sugar will soar! That's like giving yourself a glucose tolerance test! Good grief! That's one reason you might be tired but there might be other reasons. Please see your doctor.
forum moderator - diabetes
diabetes controlled so far by exercise and a low/no carb diet