question: It feels like I have a slight tightness and possible constriction of blood flow. It s an area approximately 1.5 long and is centered approximately 3.75 above my sternum and the center of the tightness is approximately 2.5 to the right on the right side of my body. I am age 67, 5 7 and weight 200 lbs.      I’ve been aware of this during about the last 10-14 days. Today I walked for an hour and even went up 2 fairly steep hills of a grade of approximately 10-15%. One hill was about 75 yards long and the other about 50 yards lone. My heart felt pretty good. I could only notice a slight tinge in the area I described during the walk up through about 6 hours after.      On 7/25/12, we learned I had a “slow heart rate” of about 39 beats per minute in my ventricles. We also learned I was in “3rd Stage Heart Block.” This answered the reason why I had fainted approximately 14 times over about the course of 1.5 years.      The good news is we were very fortunate to have a Pacemaker implanted 2 days later on 7/27/12.      Do you recommend that I contact my Cardiologist? What other advice do you have for me?      Thanks, I will sleep better tonight knowing we addressed this a bit. I am a doctor’s son, he taught me quite well to listen just as carefully as I can to communications my heart and body tell me. They don’t usually scream but they do communicate if I pay close attention.