question: Hi. ive been smoking marijuana for just over twelve years. i hardly ever stopped smoking until last week. i smoked at least four joints a day of really strong pot and i would cough until i puke . in the mornings i wouldnt be able to go for a walk without coughing until i throw up and thats without even smoking beforehand. this is still happening and its been ten days since i last smoked. should i be worried about cancers and other lung issues? i had pneumonia three times between the age of 15-18 and im wondering if this is a contributing factor. i also have a stomach ulcer from a past alcoholism but have since quit drinking so i think this is another part of my problem as for the puking. i havent been checked for asthma im too scared too find out if it is that or any disease but could you please give me an answer to all of this im really worried it wont stop.