There could be all kinds of reasons for this. Inverting my day rhythm (gradually over the course of November, though) so that I now am awake all night and sleep all day - it is now approaching my new bedtime. Long walk in cold - evidently the winter kills of a good number of old people, although I suspect shoveling snow is a big part of that. (There is no snow now - it went away before the current cold.) Eating and drinking quickly after exercise has set off speeding heart before, usually lasting far longer than this - but without the random hard knocks that started out this episode. And finally, I may not be allowed to write about time and eternity, so I deleted the entry. I thought it was a very good entry, truth to tell, but God or my subconscious may not think me worthy to writing about such themes. Since I can't offhand say which of them, I better be careful.
In any case, despite the bi-yearly assurance from my doctors that I have the heart of an athlete (without being one, but they don't say that) I still realize that sometimes athletes just keel over and die from hearth arrythmia, just like anybody else. If there is any surefire way to prevent it, I don't know of it. Omega-3 is rumored to reduce the risk, but then Omega-3 is rumored to do pretty much anything less than raising the dead. It is the panachea of the year, or last year or the year before that. Recently at least. I think it is vitamin D this year, actually. But there is that too in the same capsules, one of which I had taken shortly before the event.
Anyway, if I suddenly drop dead, please don't summon my ghost. Also I'd like my headstone to simply have my name, dates of birth and death, and the text
but somehow I doubt my relatives will buy me such a stone. And I won't be around to scold them, so they can safely ignore my wish.
(Actually my walk today, unlike most of them, took me to the local church where I stood for a while looking at the headstones and taking in the atmosphere. But the voice in my head said: "Why are you seeking the Living among the dead?" and after it had said this a few times, I moved on. I doubt that has any influence on my physical heart though.)