started smoking it, and just felt my lungs caving in (this has never happened to me, not even my first time) and i coudnt even finish my joint, then i tried to walk away and all i could hear was buzzing in my ears, nothing else, i also had intense frame vision or whatever its called, and then i got so dizzy i had to sit down. then about 10 minutes later i just went back into a regular high? any idea what was happening?