Hi,
The ECHO report shows degenerative changes in heart valve which is likely to be age related. Moderate TR and PAH is mainly due to involvement of the lungs and can lead to effort tolerance which is evident from the history of breathlessness.
CT Thorax report is suggestive of apical fibrotic involvement which may be due to old infectious aetiology.
Next Steps
Visiting a cardiologist and a pulmonologist will be necessary for management to TR/PAH which is more likely due to the lung involvement.