MONITOR YOU'RE BLOOD PRESSURE AND RESTING HEART RATE!
It's really amazing how these numbers go down with increased exercise and a sensible diet.
Start walking to the drug store to get a BP reading or just take your pulse randomly when you're sitting down reading or watching TV.
Anything over ~140/90 is not great, 120/80 is normal but shoot for the 110/70's range. Resting heart rate should NOT be over 80. Shoot for 50's to Low 70's.