Thanks for your query.Chest pain
can be due to procedure related complications like collapse of the lung, pleuritis, inadequate analgesia. What I think you must try to Breath deeply as hard as you can so that your lung gets fully expanded or else you may ask for incentive spirometry
Secondly considering a strong family history you must be evaluated for any underlying cardiac abnormality for which you may go for stress ECG and echocardiography
If infection is suspected antibiotics will help...