I get this way when I am cycling depression and I can't think fast and have no logic either. R U depressed? When I am manic I get fast witty and smart and have impeccable logic. R U bipolar? What R U? let me know more about your mental status so I can make an educated guess.

But don't let it bother you for now. You are who you are girl and no one can take that from you. Logic comes when there is something to be logical about and your time will come. :-)