I've been an avid smoker for several years averaging roughly a pack a day. (dependant on alcohol consumption of course...lol!) I just purchased my first vaporizer yesterday and have been playing around with it ever since; making minor adjustments here and there. I haven't had a cig since I got the thing and I've noticed I've been expelling a lot of mucus from coughing. I'm sure this is my body's way of getting rid of the crud in my lungs but dang! How long does this last and is this normal?