You are suffering from COAD-Chronic Obstructive Airway Disease
because of your smoking
. You could also be having an element of asthma
as these two diseases have a lot of overlap of symptoms. You need to get a chest xray done and if required a CT Scan
of chest to rule out any other lung pathology. Then you have to get a PFT done to establish the diagnosis of COAD and/or asthma. The most imp treatment in your case is quitting smoking which it seems you have already done. You should take inhaler medicines like seroflo
and tiova in MDI or Rotacap form. You may also take doxyphyllin tablet twice a day, mucinac tablet, do steam inhalation and deep breathing exercises. Avoid all kind of smoke and dusty atmosphere.