So i turn 31 in a few weeks, and ive smoked mj since age about 14 . THe thing is , in the last 6 months or so, I don't get any real pleasure from it anymore. I get a sort of generic wooly headed high that is not really worth it or enjoyable. I've cut down and go on 2 week t breaks and still nothing . always the same . I can't remember the last time i was properly stoned to the point a movie or music is totally entrancing. now its more just a backround feeling which to be honest I don't even feel like having in my life anymore. So, i think i'm giving up mj for good, and i dont even feel bad about it. I wonder if its something to do with ageing or some sort of radical brain chemistry shift.