A lot of Americans self diagnose with various "long" illnesses that are not detectable via scientific means.
Am hyperboling but the difference between being raised to think you're a victim and actually suffering from something else is difficult to get right. Infant traumas can lead people to become so daringly incompetent they think they have a problem other than needing psychological help. No one likes to realize they are stupid but the stupider you are the more it hurts.