Ok this is something I've noticed before I even started smoking regular cigarettes a couple years back. Any sort of vapor that I inhale feels like I'm inhaling sand and makes my lungs feel full even with tiny amounts, sort of like the feeling you get when you inhale too much water when swimming (hits mostly on what feels like the upper most portion of my lungs or bronchial tubes). Smoking regular cigarettes doesn't do this and I can barely feel the inhalation with regular cigs. Is this something my lungs will have to get used to, or am I just screwed? Don't have any noticeable health problems at all lung-wise, but I've always noticed that when vape-ing other things in the past (hot/warm vapor or cold), I'm the only one who seems to have this kind of trouble