From past 3-4 days i have been seeing blood in my cough during early morning and the cough is brown. 30 days back when i had a suspicion of TB due to my colleague getting diagnosed I had visited a pulmonologist and chest xray was done and told i have sinus issue other than that nothing. (I have bronchitis from childhood). During day time i see no blood in my normal cough, only after  i wake up in morning i saw that. Smoking: I have quit smoking recently 30 days back.