Thanks for visiting HCM.
may have different cause, it can be simple musculoskeletal, may be due to acute pleuritis, pneumonia
, pulmonary infarction
,or since it is lower down in the chest, may be due to some abdominal problem.
I advise you to go for chest x-ray and if it suggests something, treatment will be according to the diagnosis. If it is inconclusive go for a CT scan thorax to come to a precise diagnosis.
The dreaded disease can be pulmonary embolism
which must be ruled out at this juncture. If you are running down fever , go for complete blood count
and sputum examination.
Meet your doctor with the above reports ...