I have steadly been smoking weed everyday for about a year and a half now and ime only 16. All day I cough up black dots with mucus, and have a violent smokers cough. I do not smoke cigarettes at all! My main method of toking is the bong filtration of smoke by water. I am currently smoking a quarter evry two - three days, when I wake up I weez and cough from the weezing, I need to know if there are any serious infections, or diseases I should be worried about?