My brain is weird

Does anyone else ever dissociate from their own name?  Like, today at work someone called me by name and I had a moment of, "Huh?  Oh right, I guess that's my name, isn't it." 

Considering how strongly I felt about not changing my name when I got married, you would think this is a little weird.  But it happens every so often--feeling like my name just doesn't fit me. 

Maybe the disconnect comes from some sort of impostor syndrome thing.  Inasmuch as other people have this mental construct of me that they label *myname*, but if they ONLY KNEW what I really was, etc. etc., and so I know that other people using my name are using the wrong signified.  And it's not like I lay a lot of mental counterexamples by talking about myself in the third person.  (No, I'm not going to start.)

Gah, brains.