Often when this happens it feels like I have to clear my throat and it is very difficult to get it clear, and occasionally when I cleared it is a lump of mucus. Sometimes I got a bit worried because the mucus
was grayish, but I looked it up
online and found out that this is fairly common with smoking. I never smoked ciggarettes, but I have been an on and off pot smoker over the years. I read that this is normal and shows that your lungs are actually working so it is not a bad thing.