Now that this has actually happened, the person in question is being so nasty, so selfish, and generally such a drama llama that I'm thinking, "Oh! Is that how it is when people assume that my health problems are really somehow all about them? Well, sorry they feel that way, but not really much I can do about it."
So that's a milestone I guess. Or perhaps a millstone gone.
Grandpa did not mention what percentage of the things I worry about come to pass and then are completely tolerable when they do, but it seems like it might be a pretty relevant category in life, given how much I worry about random stuff.