How come when i smoke weed it feels like i am repeating the same thing over and over?

Like one time me and my friend were walkin to school and we were about 150 yards from the gate we have to walk to, and it felt like we were walkin but could not get to the gate, it just felt like we were walkin in the same spot over and over again, and then i licked my lips and it felt like i licked my lips like 3 times, it was weird, it felt like we were walkin on a time loop, we were walking but it felt like we were walking in place