fear of success?

[nats]

this fear of being caught out as a fraud is a thing in business psych and gender studies known as 'imposter syndrome' and features in Sandberg's popular 'Lean In.' successful women are particularly prone to it, so you're in illustrious company

seriously, i think as multiples we might be particularly affected by these feelings because most of us spend so much effort putting on a front for outsiders. interesting question.