I've noticed this too. I tried setting the heart rate monitor to always be measuring and within an hour my whole hand was numb. So first thing I would try is set that to manual measurement and see if it helps. It's not hypochondria. At first I thought I was experiencing carpal tunnel until I realized I changed that setting on my watch. And there's 19 pages of people complaining about it here: https://us.community.samsung.com/t5/Gear-and-Gear-Fit/Samsung-galaxy-watch-causing-pain/td-p/574425 ... View more