Running in stress
Had a pace maker fitter in Oct 2017 as my heart rate was dropping to 33. Thought I was really fit! However after I had it fitted I had problems with running comfortably, it felt as if I was running with a plastic bag over my head. The pacemaker dept did a considerable amount of tweaking until I was able to run within my own fit constraints. The pace maker is set to kick in at 50 BPM however with top cover at 150. However recently it feels as if I am back to square one with my running. After about 3 miles I get in to such oxygen debt I have to stop to recover. My pulse rate is approx 160 without going that fast! I have been a runner all my life so it is not that I am unfit. Fortunately I have an appointment on 12 March for my yearly check up with the pacing team. On recommendations to flag up? Thanks.