Hi welcome to health care magic... You can have abdominal cause that can lead referred chest pain on right side like kidney problem , gall stone, colitis, recurrence of hernia etc.... For that I will suggest to investigate with USG abdomen with full bladder.... Second it might be bronchitis like condition of lung... For which chest x ray taken for further work up.... According to report and examination, cause confirmed and than treated accordingly.... For left side hernia you are suspecting examination done ....You have to cough and look for bulge in that left side for rule out hernia... If no above causes found than there might be muscular pain... For which brufen needed Take care Advise : physician consultation for further examination...