Hello
welcome to health care magic, I have gone through your question very diligently and I really appreciate your concern.
Breathlessness and
nasal bleeding in the backdrop of history of smoking is a matter of concern, which might be related to number of conditions like
COPD, chronic obstructive pulmonary disease
Asthma
Infection like
Tuberculosis,
Nasal polyp
heart or lung disease
I would advise you to visit nearest emergency room for physical examination like checking of blood pressure, chest examination, and
blood test like
hemoglobin, CBC,ESR, sputum test for microscopy and chest X Ray.
In my opinion you should take expectorant cough syrup like bromhexine, steam inhalation which will help by diluting and dissolving thick secretion of
respiratory tract.
Deep breathing exercises are also advisable.
Hope you will find my response informative and helpful, please feel free to ask for further clarification.
Best wishes