HI, thanks for using healthcare magic There are different possible cause for chest pain. Normally pneumonia would be associated with additional symptoms such as shortness of breath, fever, productive cough, loss of appetite, fatigue and malaise (feeling generally unwell). With a history of recurrent cough and chest pain on taking a deep breath, it is possible the pain is caused by pleuritis. This is inflammation of the pleura , the lining of the lung. It can be treated with the use of anti inflammatory pain killers such as ibuprofen, cataflam, aspirin, naproxen (provided there is no history allergies). I hope this helps