I'm 50 yrs old - female. I'm pretty healthy and have no major illnesses, but I do have some physical problems that I'm hoping to alleviate with fasting, because they're destined to turn into big problems down the road. I'm on day 7 of a 21-day fast. Things are going well but I had a question about my lungs. Ever since the 3rd day of the fast, my lungs have been expelling a lot of mucus clumps (so far it's only yellow - no dark colors). I cough almost constantly and the cough sounds like someone with bronchitis. I cough about every 3 - 5 minutes. I was just wondering what is going on? Are my lungs THAT toxic? How did that happen? I don't smoke and I never have. Although I did have asthma as a child. I'm curious if anyone knows anything about this, or has experienced the same thing.