I am, as many of you have long known, prone to over-thinking and obsessing about even trivial stuff.
From a Zen perspective, the thing to do now, I think, would be to sit with this. But I doubt my ability to do that. I'm afraid I will either get so comfortable with it I'll just give up (an idea which already has some appeal, frankly) or work myself into a complete panic.
So instead of sitting with it, I'm sort of frenetically trying to keep my mind occupied with other things – anything, in fact, that will keep me from dwelling on this illness.