I am experiencing Deja-Vu, perhaps this question had been asked before.
Special Agent Dana Scully
Don't be silly, Mulder. What you are feeling is easily explained by the commonplace of the question. It has become almost cliche, and having heard it so often in your life, you assume that at one point it has been asked here. Your experience is not what you call Deja-Vu, rather your brain trying to turn the commonplace into the fantastic.