I am 23 years old, a smoker (quit about a week ago), and started with a cold about two weeks ago. After
the cold symptoms went away, I developed a cough. The cough is phlegmy, with a yellowish/brown tint to it and has lasted. On a few occasions, I noticed a pen dot sized speck of bright red blood and it scared me, so I went to my doc. He asked me a series of questions, listened to my chest and lungs and said I sounded clear.