u/Ales_02

Hi everyone, I've been running for about 3 months now, recently I got a Garmin, I know that the sensors of the watches are quite inaccurate, despite this I have noticed some (I think) discrepancies between the heart rate data and my sensations during the run, when I have to do a slow run I look for a light effort, where I feel very comfortable, where I can go on for a long time at that pace, and I feel the whole body ok, 0 heavy breath, in short, where I feel very good, in this case despite the right sensations my heart rate is around 148/150 depending on the day, the same thing for the medium, the feeling I have is fatigue but still managing, where I feel I have enough margin, a little breathlessness yes, but not excessive, in this case the heart rate is around 167/170, I'm quite large, 190cm 91kg, bradycardic certified by a cardiologist, has anyone had similar experiences? What should I base my training on? Based on sensations, which I respect and find correct, or on my heart rate? Is it possible that my max heart rate is simply much higher than the theoretical one? (which should be 197 bpm)