Such an ambiguous question is “Do you know who I am?” I mean,
        1.  Are you asking if we’ve been introduced?
        2.  Are we playing a guessing game?
        3. Are you testing me for dementia?
        4. Are you suffering from dementia and need to be reminded of who you are?*
        5. Are you suggesting that your importance as a person indicates, nay demands,
            special attention and deference?
I hope the answer isn’t #5. Self-touting is beneath you, whoever you are.                                                                                                                             
*If so, would you like me to write your name on a Post-It so you can look at it?                           Or maybe you might read it and wonder who that guy is, that is, 
 if you are still able to read.
  (I’m really sorry if #4 is the reason you asked the question.)