i have had bad drainage for the past year, mucus constantly running down my throat. I quit quit smoking 3 weeks ago , and have not had one single analog ( cheers ). I am feeling a lot better and my throat feels a lot better. I still am producing a lot of mucus but that is because my adnoids are swollen and I have to get them taken out. Anyways, this morning I woke up and cleared my throat and spit up a yellowish mucus with some blood in it. Not all blood. A little. It happened a couple of times. Don't day go see a doctor because I have been to the doctor multiple times when I spit up blood in my mucus and they just tell me it's cause I have really bad drainage constantly. Does anyone think this is from vaping? Or vaping contributed to it. I am vaping 2 mg nic of a house juice.