Was reading through all the posts because this is happening to me also.So we know that it isn't from smoking pot or cigarettes because all of us don't smoke.The thing that I noticed in the long post on pot smoking was it was the lungs way of removing fats/lipids and whatever else was listed.Something hit me when reading this,How many people here are taking prescription meds?If you read the inactive ingredients you will find things like gelatin,propylene glycol(also used to make a lot of plastics)and yellow # 5(which a lot of ppl have an allergy to).So my thought is maybe it is tyed to medications either prescribed or over the counter.