hi! i am a 26 year old male who has been smoking poppers- (pot and tobacco mixed) from a water bong for about 4 years now. i have noticed that i cough up a lot of black mucus in the last year or so, and i am a bit concerned. i hit around 4-6 bowls a day. i know its bad and need to stop and am trying. i would like to know the health effects from these after a long time of use. like what the black mucus is. it will help me stop if i know. just dont want to have a heart attack before i reach 30. i also have noticed some chest pains where it feels like my chest needs to expand and crack in the middle. thank you for your time and patience with this issue.