The first time I smoked weed I had something similar. However, not the exploring the world part. I went and picked it up with my friends and then i did a bit of weight lifting. So my body was pretty drained when I decided to smoke some of it. Definitely some dank buds. About ten minutes after smoking, i felt this rush (either icy, or hot) run down my spine, and then proceded to shake violently in my bed for about another ten minutes. After I stopped shaking, my covers on my bed felt like warm liquid glass covering me. I then floated until i fell asleep. It has only happened to me twice, and it was off of that same bag.