I have been suffering from a persistent cough for the past one month. Despite taking antibiotics, Inhaler  and other prescribed medications, there has been no significant relief. Recently, I have started experiencing episodes during coughing where I feel choked and temporarily unable to breathe for a few seconds, which is causing concern. I have also undergone a CT scan of the chest. The findings include: Fibroparenchymal bands in bilateral lung fields. Subtle ground glass opacity in the left lower lobe. Presence of multiple mediastinal and hilar lymph nodes I request your expert advice regarding: The possible cause of my persistent cough and breathing difficulty.