I am a chain smoker. Have been smoking for a few years. Recently I have been having this cough with symptoms similar to a smoker's cough. Initially, the throat used to dry up and hurt a lot in the mornings and eventually used to get better. But recently since the day before yesterday, I have been coughing up bloody sputum but in the early part of the day. I would like to know if this has to do anything with an infection or the like. I never had any respiratory problems before. My throat still is chaffed for almost half of the day.