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.
Yes, it is amazing. They say Heart Rate Variability is pretty good indicator of stress. My HRV graph for last 6 months clearly shows when I made decision to change job and when I gave 2 weeks notice.
How do you have 6 months of data? Is that something modern smart watches produce? I would love to have that data for myself, but don't really want to complicate my life with a smart watch. I don't even like keeping my e-reader's battery charged...
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.