Ugh, I am so sorry anyone has to deal with this. I do, too. I constantly 'lose track of time' or 'misplace myself' while driving. It's one of the reasons I was not too bitter when they took away my license. I shouldn't have it.
I'd bring this up with your doctor, however, to make sure it isn't caused from absent or focal seizures -or- it isn't from your medication. Could also be stress..Heck, it could be anything or nothing!
Don't let it get you down, I'm around if you need to talk or vent. Well, I will be after I clean the toilets
Ick!