I have consulted local pulmonologist he has done pft test , attaching the pft report he told that your air pipe has been narrowed , he prescribed me acebropyline Abmore 100 mg tablets , sir my oxygen level is 99 and I don't feel breathing problem while doing physical work when I am at rest I feel breathing difficulty I can't take deep breath my age is 23 am I having copd because I was a smoker daily 2 cigarettes please see my pft report attached