Smokers cough (not cigs)

[yoda]

Couple times a year maybe I'll go through a stretch where I can't really smoke like I usually do(take huge bong rips without hacking up a lung). I also will cough up black phlegm, then it goes away for a few months or so.

i go through this too, but way more often now that ive been smoking cigs the last 2 yrs