I was suffering from TB. Took treatment for a year and got cured completely. Tough, I heard clicking sound in my right side lungs and I reported the same to doctor. He adviced me, its not prob and i'm doing okay. After that i use to smoke some times say 3 or 4 cigar in week ends(not regular smoker). Now i have completed 3 yrs like this, after TB treatment. Still im continuing with same clicking sound and also now i feel abnormal feeling (can say pressure, mild pain)at that part of lungs(right side lungs near ribs). I stopped smoking, still i'm worried about it can be cancer or something. what should i do now? please advice. what could be the reason for this ?