Sometimes My Mind

Sometimes I zone out during class and pretty much throughout the day. When I zone out I feel like im on a different world or planet, possibility another dimesion that hasn't got discovered yet. Im physically here, but my mind is in its own world. Sometimes its hard to snap out of it. It happens through out the day. Its a crazy feeling like everything around me is fuzzy and nothing seems to exists. I always wonder if other people have this problem.