Congrats! I'm happy for you. Funny how being more engaged and working more can leave you with more energy at the end of the day. I've felt the same way in the past.
My heart nerves got jacked up a couple years ago, and I had to get a pacemaker. It's presumably collecting a ton of cool data that it BLE's to the manufacturer and my cardiologist, but I don't have access to it.
I used the swagger interface a few months ago to download my resting heart rate over a three-year period, and it was interesting.