Hi, thanks for calling to H.C M.
Pain on both sides back as well front on the chest parts i.e involvement of right lung.
Right or left lugs are lies in thoracic cage on both sides extending from top of the chest to lower part of bony cage i.e. from the base of neck to just above the abdomen( the portion where thorax ends).
Now coming to your question that there is pain and it seems that the infection is in the apex of right lung and disease may be due to an infection. ( consolidation or pneumothorax
So get in Xray chest and blood examination and find out the reason.
Take a deep breath and if there is excruciating pain during deep breathing than diagnosis is sure as above mentioned.
Take these things seriously and take treatment before it is too late.
Good luck. Dr. HET