Have you consulted your doctor for an exercise regime? And have you told him about the conditions you are having right now?
As far as I know... You don't have to do strenuous exercise to lower your blood pressure. You can do moderate physical activities for 3-4 times a week and you should see improvement in your readings.
Such activities include:
Common Chores:
* Washing windows or floors for 45-60 min
* Gardening for 30-45 min
* Stair walking for 15 min
* Raking leaves for 30 min
* Waxing a car for 45-60 min
Sporting Activities:
* Walking 2 miles in 30 min
* Shooting baskets for 30 min
* Cycling for 30 min
* Rope jumping for 15 min
* Swimming laps for 20 min
Of course, it is best that you speak to your doctor 1st before starting your exercise plans.
To your health!