Going Crazy?

I've just spent the morning looking for my passport.  I even called the airport.  Luckily, I just found it.  I must have grabbed it while I was leaving this morning and placed it on top of a bookshelf.  Sadly, I don't even remember doing so.  Even worse, I do this all the time - misplacing items, leaving the stovetop burning, etc.  It's either old age, craziness or just too many thoughts swirling around in my head.  All I know is I wish it would stop.