exercise

i have just taken up exercise again after a long spell away i used to be very fit but my enrgy levels have dropped a lot sinc i became diabetic so i became lazy is about the best way to put it also i was very much in self denial thinking this wont hurt me i will just carry on the way i have been eating sweets and chocolate biscuts which im addicted to now just this week i have decided to take control of my life i dont know if its my age or i have seen what this diesese can  do now when i exercise is it normal for your blood sugars to go high and if so what damage does this do or is it ok short term

[WaveRider]

The key to an exercise program is to pace yourself, start slowly and gradually buildup over months to where you expect to be. Generally low intensity exercise will decrease glucose levels. Jumping head first into a strenuous exercise program will elevate your glucose levels as stress hormones are released which tells your body to release more sugar to fuel your muscles.

The general rule of thumb is that if your blood sugar is between 100-250 mg/dl [5.55-13.88 mmol/l] it is safe to exercise. If above 300 mg/dl [16.66 mmol/l] do NOT exercise until your glucose levels reach safe levels.