I remember when my maternal Grandpa died, it was his heart.   He was 76.  I was 49 when I had my first and second PSVTs. (Sustained pulse > 180.) Ablated on my 50th birthday, second ablation 18 months later.  All was quiet for ten years, then the came back with a vengeance.  But these always aborted right as I got to the ER.  Diagnosed with HCM in December 2024.  Did the genetic testing, and it came back negative — for now.  Like my BRCA testing 13 years ago.  At the time there were two mutations, now there are ??  
I recently started a Camzyos, and I’m not nearly as short of breath.  I also had ablation #3, and my surgeon got a Ventricular tachycardia, and they also were an  ok e to trigger and ablate an atrial tachycardia.