That sounds about right. My friend who had smoked the same amount as I had stared at himself in the mirror for about half an hour without blinking and kept saying he saw his corpse. Through the entire trip I felt as though I had a "physical refresh rate" like I was a computer monitor at about 5 frames/second. Very strange. At one point I was convinced that I was the projection of a film projector that was changing projection speeds and I would move according to how fast they were going. Very, very strange. We listened to "Yellow Submarine" and found out all sorts of things. I danced with the Beatles as they would be if they were Lego characters on a yellow Lego submarine. Very, very, very strange.