I started smoking weed in August of 2004, and I used a Pepsi can. I was expecting it to hurt really bad, but it didn't. And now I can tell if the weed is good either by how hard it hits, or if I'm fucked up in a couple tokes.

For the past two-two and a half-three months, I'd smoke a damn a dime, a quarter or so every day. So far I've only noticed my lungs burning when I run for about...1/4 a mile. I usually only work out with weights, so it doesn't effect me that much.

BUT, when I first started smoking more than once a day, 7 days a week, I noticed that I was really afraid of drying because it felt my lungs couldn't get air, so I would constantly yawn. My lungs are accustomed to it now I guess because I'm fine whenever I toke up. Though...with gravity bongs, I still jump back as soon as I get the hit and feel like coughing. Takes all my will power to keep the hit in.