Many people think they can tell what their blood glucose (sometimes called blood sugar) levels are by how they feel.
But, some people can feel "high" when their blood glucose levels are low, and some can feel "low" when their blood glucose levels are normal or high. The only way to know for sure is to test your blood glucose levels.
The body makes glucose from the sugary and starchy foods that you eat, but diabetes changes the way your body controls your blood glucose. Blood glucose levels are also affected by other things, such as activity, changes in medication (tablets / insulin), illness and stress.
Research shows that keeping blood glucose levels within an acceptable target range helps prevent the complications associated with diabetes. You can lower your risk of eye problems, kidney disease, nerve damage and heart problems. Understanding how to balance your blood glucose levels will also help you feel better day to day.