It’s easier to notice what bothers me if I observe how various activities affect my energy level. By “energy,” I mean more than just not feeling sleepy—I mean the power to take certain actions, like move or speak or work. Mine goes up and down. I can do most of the things that I want to, but only some of the time. When I can’t, it’s hard to convince people who’ve seen me do it before. Moreover, it’s hard to convince myself.