me and my friends have always bought weed of this one guy, we buy almost everday and i never failed to get high even though there was three heads hittin the blunt. one day we bought of a friend of ours who said his contained 33% THC. we smoked it ALOT of it and i was high but in a very different way then my previous experiences. later i felt very sick, i threw up everything i had in me and i felt nauseous every time i moved my head. but the problem is now whenever i smoke i don't get high anymore. what should i do?