...and since I’m generally healthy I wonder if constantly monitoring things would actually just make me more paranoid.
I used to think the same thing, but if you're healthy already, you probably won't waste much time constantly monitoring things. Maybe more than normal at first, but I'm sure you'd just lose interest after a while.
You will find that most people who already use health and fitness wearables (like the Apple Watch) are also healthy. They don't use it because they are unhealthy. Monitoring your health is not a bad thing. Some people may discover things about their health that if they did not use the Apple Watch, wouldn't have... or it would have been too late. I don't think monitoring your health does make you paranoid. It's better knowing then not knowing.
I sort of disagree. I needed to lose a bunch of weight and get in shape and my Apple Watch was my motivator, as odd as it sounds. I was able to blend technology with getting in better shape and losing weight which actually worked beautifully. I think if I didn't have the AW to monitor my workouts and make me try harder each day to close my rings, I might have lost interest.