I woke up feeling quite sickly on Saturday morning and then, at about 9am, I started feeling quite awful. I felt my heart pounding and pounding - which was odd.
So I put my watch on, curious to see what my heart beat was.
You can see the results in the screenshot from the health app. My heart beat was as low as 50 one moment and 170 the next.
Thirty minutes later I was in ER and a nurse was shaving my chest so she could fit the sensors for the ecg machine.
I had Atrial fibrilation. The watch has a new feature that detects this condition automatically and warns the wearer. That sounded like magic when I first heard about it, but I now realise that it was the data availability, not the algorithm, that made it possible.
The watch didn’t tell me that, though. I wasn’t wearing it. And, that feature isn’t allowed in New Zealand yet. But it was handy to view my heartbeat and confirm something not good was happening. I probably would have tried to wait it out if I hadn’t seen the numbers.
Not all attacks are as obvious as mine, so best to turn on the feature if you can.
(And if you’re wondering: I’m okay, although I’m still knocked down by the virus that seems to have kicked it off. It also turns out that I have a magnesium deficiency which was the underlying cause, and has probably been causing a bunch of other issues. So, if I fix that with a few tablets, I might feel way way better).