Thanks for your query
First of all it is needed to look whether it is really a pleuritic pain or some else specially of heart origin.
Secondly, if it is due to pleurisy then need to find out its etiology.
Pleurisy mostly occurs due to lung infection
and tubercular pleuritis
in our country. Malignancy rarely may cause pleurisy.
Another entity currently increasing on incidence i.e. connective tissue
disorder specially SLE causes pleurisy.
Your doctor needs to exclude all these possibilities by serial investigations and also serial chest x-ray needs to be done to look for development of pleural effusion
. If develops then our job will be much easier because pl fluid aspiration can make the diagnosis for you then.
ECG should also be done to exclude the heart causes.