as far as the high just making you slower and not really being as fun any more i had that happen one time it sucked. that was the only time i have ever smoked a lot every day for over a month. then i just stopped for awhile and was fine, not that it ever got as bad as your saying the highs were actually still fun enough but they werent really making everything better like they always did, and like the line between high and sober kind of faded away, so i never felt like really clean and sober at any point of the day(not to say i was high all day though, really its hard to describe unless its happened to you) and when i got high i didnt get that high. the highs werent as noticeable and when i wasnt high any more was less distinctive. hard to explain like i said. but i still didnt plan on stopping for more than a week just to get my tolerance around, but i ran out and then people obviously stopped matching as i had nothing to match with.