This is an excellent question. There are studies that show that Type 2 Diabetes is reversible in people for up to 10 years after diagnosis.
This is obviously only going to be the case if a patient undergoes changes that will lead to this outcome. This would include losing weight and maintaining an appropriate BMI, eating a healthy diet that is friendly to diabetes recovery, and exercise. Losing weight and keeping off seems to be a signficant factor for this reversal to happen.
Have your numbers fallen in the area of type 2 Diabetes?