SECOND-GUESSING SUCKS ASS!!!
Those who constantly doubt their own judgment (and reason for living) are usually prone to a wide entourage of psychological and physical problems running the gamut from mood swings, low self-esteem, anxiety, depression, SUICIDE, to incontinence, hemorrhoids and non-functioning penises!!!
Self-doubters who have a low self-esteem and high degrees of anxiety, depression and procrastination, express more discomfort with uncertainty and a greater need for the approval of others.
They are more susceptible to depression because they feel life is out of their control.
A classic picture of a self-doubter would be a fat un-muscular man who has a 2 inch penis and hazelnut-size testicles. This could be a classic example of what came first the chicken or the egg! Did the man's cock and ball size get him to feel insecure and become a self-doubter or did the man's lack of certainty cause his dick and balls to shrink???
Lacking confidence in one's own decisions causes apprehension about making a wrong decision or making a decision that meets with others' disapproval! DEAR GOD!!! Some self-doubters would find open-heart surgery less of an ordeal than making a decision.
High self-doubters give diminished weight to their own interpretations and perspectives.
This is why they are prone to having their moods buffeted about by changes in their immediate circumstances, much like a bipolar woman who is having menstrual cramps.