did you say you smoke cigarettes? because if you do then its that. what your doing is tearing apart your stomach and throat by smoking cigs, and then you come along with mj and finish the job. thats what happened with a friend of mine.

if you dont smoke cigarettes, then it sounds like you have some sinus problems. smoking while your having issues with your throat or sinuses or stomach is never a good idea. if your already sick in those areas, smoking anything is just gonna make it worse. take a break for a couple weeks until you start to feel better, then try again.