Oh, my overall cognition is fine, as far as I can internally assess, and no, I get nowhere near as much sleep as I should, which probably accounts for more than

Oh, my overall cognition is fine, as far as I can internally assess, and no, I get nowhere near as much sleep as I should, which probably accounts for more than I grant. As to challenge - plenty of it. It's really rather more associative fuckups, as someone else in the thread describes - even if I have the right word in my head, my hands may type something utterly different, which usually starts with the same letter and relates to what I was after, but differs. As to memorisation - I'm talking having gone from being able to indefinitely retain 20+ digit strings on first sight to maybe half that, and often finding I've switched a digit. As you say, sleep is probably a major component in this, and I can't recall sleeping more than a few consecutive hours in years - usually manage six hours of restless sleep before throwing the towel in and getting back to doing whatever it was I was doing when I nodded off. Can't bear to spend time just lying there. There's too much to do.