Okay well 2 nights ago I was at a party with some friends a few of which had some gear. I bought a hw (0.5g) off my friend, borrowed my mates pipe and had abit of a choof. Immediately as it kicked in I started to get this weird almost asthma pain/shortness of breath to the point where I needed to just sit down and chill for 20 minutes. I am very experienced with the shit and have never had this sortve feeling on it before. The thing is 2 nights later I still have that shortness of breathe/weird feeling. When I done it was I blew it straight out (although the whole crystalizing in your lungs thing is a load of crap). I am 100% sure it was Meth and had been jumped on minimally if at all. My question here is has anyone else ever experienced this or know what this may be?