Okay. I've been vaping since July. At first I was taking in way too much, I actually was overdosing on the nicotine. I fixed that problem, moved down to 18mg juice. I haven't had any of the issues I had before, the getting dizzy and the overall weird felling. But I've noticed I've started craving my ecig a lot more at work (we can't smoke them in the building anymore) and I seem to be puffing all the time when I can. The only real problem I was having is dehydration, which I found is a common problem. But I don't drink water as it is, so this was a good thing imo, cause now I'm drinking water. I'm noticing my bottles run out faster, I'm going through a lot more. And now I'm having pains in what I would assume are my lungs. sometimes sharp, sometimes dull. I didn't have these pains as a cig smoker, and I feel overall much healthier than when I smoked, but the pains in my lungs make me wonder. I read that nicotine itself can cause a tightening in the lungs, so maybe that's it? Is this something anyone else has experienced? I don't plan on quitting, I don't have a want for that at all, I'm just wanting to know if this is ecig related or not.