Could be as trivial as a type of food, a TV show, or something more serious.
I’m totally the same. Last night a coworker text me to let me know they would be back in the office tomorrow after taking a couple days off. It took me almost 10 minutes to come up with “ok, see you tomorrow then”. I rewrote that text at least a dozen times. Why the hell is something so simple a monumental effort for me?