This resonates with me a lot. I can be quite genial in social settings, but it's extremely taxing to my psyche because I unwillingly rehearse and predict all possible outcomes and how would I react. I catch myself having had a mental back-and-forth between myself and the person I have to meet, and if it's to be a particularly unpleasant occasion, I will have a heated argument all in my head that leaves me upset for hours.
Yeah, that's not very healthy.