I totally understand what you mean. Finlady describes it perfectly! I usually know after my morning coffee if I'm going to have one of those 'lost in space' kind of days. I don't drive, or even cook without the kitchen timer (although on one occasion I set the timer and then couldn't remember where the 'beep, beep, beep' noise was coming from, LOL). I really hate this symptom the most think . I do not like feeling so incompetent.