I talk to myself alot, but not in a weird way (i hope). I play out possible scenarios of what could/could've happend during a possible/ alread occured event. Like if i was about to punch someone and i didn't, i'll replay the event in my head as if i did punch the person, creating my own commentary. Weather thats weird or not i do it.
I also play possible scenarios in my head, like if im thinking of doing something the next day ill play it in my head. I think the reason why i do this is because im very observant (also not in a weird way), so i have acually "predicted" the futer many times by playing these scenarios creating many times of de ja vu. I have records of this as well, i have predicted mnay things that have happend to my friends, after said event happend i say "told ja so", then they sigh and walk off.