Sir in my sputum blood come approx 20 to 1

Patient: Sir in my sputum blood come approx 20 to 1 month between from last one year in very few quantity. I am already completed the Tb course of 8 months. After complete the course my all check up as sputum test,x-ray,Ct scan, bronoschopy, endoscopy, ultrasound are normal. Till now I am going to deprecation because I am consult the more doctors and doctors told me that you have no problem in check up so you are clinically fit . But blood problem continues in sputum so plz suggest me that what I do in this stage.

Doctor: