I still had some "Brain fog" after a few weeks. For me, it meant having some difficulties at times in remembering the word I was trying to say. Caution is needed if you are doing calculations, accounting, etc. as you might make more errors than usual. And be VERY attentive when driving as you might not get back full alertness and reflexes for a couple of weeks. Some auto insurance policies have a clause saying you are NOT covered if you drive within a set number of days after anesthesia!
You might like to also post at the FACEBOOK page of Living Donors on Line, as more donors check in there these days.
Fr. Pat
donor, '02