Thanks for your query.Chest pain
in your case may be due two strong possibilities i.e acute pleuritis
where there is inflammation of underlying parietal pleura, a covering over the lung which use to be sharp stabbing pain
and aggravates on maneuvers like coughing, sneezing
, laughing deep breaths etc. secondly may be anginal pain owing to a strong cardiac history in your family.
I think you must go for a chest x-ray and an ECG to have an idea of the two condition. If ECG is normal you may go for stress ECG testing....
Meet your physician with the reports..