I always doubt my decisions after the fact. Any decision. If I decide to go left, I begin to see all the reasons why going right might have been a better idea, and all the downsides of going left. And the same if I’d gone right. The alternative always looks more sensible, no matter which decision I make.
Is this inverted cognitive dissonance? No matter how much evidence there is that I am right, I always look for the reasons why I am wrong.