Actually depending on your condition and your activities, it’s entirely possible that the first warning you’d have is dropping dead. I’m also not being flip or self-satisfied, and I also have an anecdote to share. A good friend of mine who was a serious tennis players, and later an equally serious swimmer and runner got his “warning” about two years ago. He was at a conference and complained of feeling a bit ill. Then he experienced sudden cardiac arrest and despite an AED on premises he died.

He wasn’t much older than you, was in perfect shape and ate well his whole life, saw his doctor and had good lab numbers. The “far future” you imagine is hopefully just that, far in the future, but it might not be. Like a lawyer as their own client, don’t be a fool and pretend to be your own cardiologist.