@OldDoug Well, I have idiopathic (they don’t know what caused it) dilated cardiomyopathy (my heart was getting bigger; no longer, though), so I’ve used a “Holter monitor”, which is basically a 24 hour ECG/EKG.
But I have some oddities like a high heart rate on my heart rate monitor when I’m doing certain ab exercises that tighten my chest. I’ve worn the Holter monitor multiple times and specifically did those exercise, and the cardiologist said nothing is going on. But if the watch could tell me, I’d like to know.
I also have a left bundle branch block that is rate-related, meaning that it appears more with higher heart rates. When I take my morning blood pressure, I get a heart rate reading too. It’s normally slightly below 60bpm, but if I’ve ridden my bike, it’s in the 70s. I think this is the LBB (left bundle branch) block showing up and fooling the blood pressure monitor. This also shows up when I go to the cardiologist and they do an ECG, but I only go twice a year, and they only take an ECG once per year.
If the phone would let me know about this, it’d be helpful.
@GME My previous watch was a Citizen eco-drive, which uses light to charge an internal battery. It lasted 8 years before it quit. When I was looking at replacements, I considered a Samsung watch (since I have a Samsung phone), but I did not get one, as I had to charge it. I instead went again with a Citizen, as I like the idea of wearing a watch for almost a decade and not doing anything.
But if Samsung or Apple come out with a watch that is relatively accurate for a CGM, I’ll have to consider it.
I wore a Free Style Libre CGM for over a year (bought a supply from Sweden, than a US one). I learned a lot. For instance, people say that popcorn is bad, but for the amount of home-made popcorn we made, and I ate, I got zero blood sugar rise. (And for the number of times I eat popcorn, a few times a year, it’s not worth worrying about it.)
Similarly, I ordered what I thought was “safe” soup from an Asian restaurant, and my blood sugar went through the roof. Whatever they used to thicken it, I think that was the culprit.
And I tested meals of very high protein and did not get a blood sugar rise. I did not, however, compare say 1-2 weeks of 70% fat with 1-2 weeks of 70% protein to see what happens to daily blood sugar. That could be interesting.
I’m also still trying a high saturated fat with a TKD (targeted keto diet), where I eat some carbs the meal after my exercise. Does that raise blood sugar, and if so, how much? It’s possible to do this using pin-prick meters, but it’s hard to do.
For example, here’s Thanksgiving, 2017. We eat at “lunch”, so that spike to 9.7 is bread, potatoes, stuffing, at about 1pm. The next hump is dessert (cheesecake?). But each two lines is 1 hour, so for me (and this isn’t true for anyone near T2 diabetes), my blood sugar goes up and down in one hour. If I take pin-prick blood sugar before I eat and an hour later, they’d be the same, and I’d miss the entire “hump”. It wasn’t until I got a CGM that I realized what was happening.