In a lot of senses, introspection and thinking hurts; growing hurts, regrets hurt, dreams unfulfilled hurt, guilt hurts, what could’ve been hurt, and the future that awaits you, unless you change something, hurts.
And distraction numbs the pain. Numbs the thoughts. I’ll take an uneducated guess that a big chunk of cases of anxiety and depression are not caused by chemical imbalances, and are simply people’s brains telling them “you’re doing something wrong, correct course! Correct course! Correct course!”. Kind of like the aircraft TCAS/GPWS “Terrain. Pull. Up. Pull. Up. Terrain. Terrain. Terrain”
I guess that most people, both around me and online, never ask themselves those questions, and simply go through life as it happens. For some, that doesn’t go so bad.
Almost never does a successful, happy, fulfilled, healthy life come from a lack of introspection and suffering. “I carry the wounds from the battles I avoided”.