I took a cardiac treadmill test yesterday and qualified for a pacemaker. So now I need to decide whether to get one implanted. It might well improve stamina--less huffing and puffing and collapsing--as it should improve blood flow and oxygenation to the heart and brain. I qualify mainly because I was unable to raise my heart rate enough to support normal activity. Does anyone have experience with one? The one my electrophysiologist would implant will also attempt pace you out of premature atrial contractions--the most common type of arrhythmia and one that most of us get--that weird feeling when the heart seems to skip a beat or do a double beat.