The day feels incomplete
Your mind is used to a certain routine – certain rituals put a nice little bow on the day, and signaled that it was done. Maybe you used to go for an evening walk with a friend every day. Or grab a drink at a local happy hour spot. Or go to a workout class. Your brain got used to the idea that, “Okay, after we do that thing, the day is done.” But now that thing doesn’t happen, so your mind struggles to understand where one day ends and another begins.