Betty, having information like this isn't for everyone, and there is a learning curve with it.
This morning I had PVC's that went on for what seemed forever. I checked my heart beat to see if it really was racing, or in my mind. I also took an ECG, using my watch, which I could show the doctor, since I had more than usual. The watch also confirmed I was not in AFib.
Also, I think about what could be a trigger. Stress? Diet?...I'm learning as I go and I guess the watch just helps me understand what's going on and will help me in my discussion with Cardiologist.