I don't smoke cigarettes ever, and I have no difficulty inhaling. It feels like my lungs themselves aren't absorbing the air that's in them. The key here, is that it only feels that way. I have no choking or hypoxia symptoms. I don't feel tired or anything.

This also happens occasionally when I'm not high, I think smoking just increases my focus and attention to my breath, and I notice it.
TurnyBright Reviewed by TurnyBright on . Strange Feelings Of Breath The sensation that I've been noticing the last 2 weeks or so (whenever I smoke) is annoying and disconcerting. A few minutes after smoking, I begin to feel like normal inhalation of air does not satisfy my body's craving for oxygen. I can't really explain it, I feel like I can't inhale deeply enough to get that satisfaction of having taken a breath. My solution and the only method that seems to counter this feeling at all has been to inhale slowly through my nose until my lungs are FULL, Rating: 5