Impostor Syndrome

Following Readercon, I'm having a serious episode of impostor syndrome.  Like, I'm afraid to write for my own blog.  Despite the fact that I write under a pen name, my real name was on my badge, and I only gave my card to like three people, I feel suddenly, deeply concerned that I'm not going to be able to write posts well enough to avoid embarrassing myself. Then again, maybe I don't have it.  The idea of impostor syndrome is sort of a self-esteem Catch-22.  Wikipedia defines it as:

a psychological phenomenon in which people are unable to internalize their accomplishments.

Am I failing to internalize my accomplishments?  Maybe I'm just right about the theory that my accomplishments up to this point are meaningless, sub-par, or accidental.  If that's the case, it's not impostor syndrome, it's... I'm not sure.  Pretentiousness?  Angst? Back door self-aggrandizement?

I don't know.  But if there's anyone checking out my blog because you met me at Readercon, letting you know:  I'm a little bit terrified of you.  And I'm looking forward to next year.