Checking your blood sugar is like doing a science fair project. The focus of the project is you. It is okay to experiment. It is even okay to have fun. Try checking blood sugar before a meal. Check one to two hours later. What happens? Expand your experiments. Does exercise lower your glucose? Does stress or illness make your glucose go up? The more you discover what affects your glucose, the more you can be the boss of your diabetes.
Check your glucose before and 1-2 hours after you start eating. If your glucose went up 50 points or less, your body handled that meal pretty well. If it goes up more than 50 points, experiment with smaller portions or different foods. Check and see if that helped keep your glucose where you want it. If you are eating healthy meals and you see that your glucose always goes up more than 50 points, call your doctor. A change in your medicines might help.
What happens when you exercise? Test your glucose after exercise. Walking, biking, dancing, playing, moving, can help you feel good and lower your blood sugar. Seeing a lower number on your meter can encourage you to be more active.