Am I still..."man"?

There could be numerous possible reasons. If you were smoking often then stopped or slowed down to "every once in a while", this could be your reason. Are you eating a proper meal before? Did you used to drink beverages with sugar in them while smoking (such as soda or other drink with high sugar content) and now don't? Are you sitting in the direct heat while smoking? Are you a diabetic?

You'll always be a "man". The question is, are you a Mans Man?
Just kidding.

[rizzle]

I've been getting hit harder by the nicotine lately as well. I think with me it has had more to do with when I smoked rather than what I smoked though. In other words, not enough in my fat stomach at the time.