" Many children, however, are in some or many important respects unable to fulfill the expectations of their parents, and carry round with them, so to speak, raw, painful areas of disconfirmation which leave them exposed to sudden attacks of self-doubt and uncertainty, sudden ebbings of self-confidence which may well be experienced as 'symptoms' of anxiety or depression. "

― David Smail , Illusion & Reality: The Meaning of Anxiety