What is a random insecurity you think Nicole would have?

I don’t mean the obvious ones that we know she has, like her past of being gamer and a loser, or her interests in mythbusters/science, but rather just a random insecurity that many other people probably don’t have?

Everyone has their own obscure insecurities. What’s one that you think Nicole would have that she probably wouldn’t even tell Jecka (or her therapist) about?