I am having a sharp pain in my upper right rib just under my breast.  It came on out of the blue and has lasted 3 days now.  I was sick for 4 weeks with a mild cough.  Nothing too severe and I did not receive a blow to my chest.  It hurts to take deep breaths, sneeze, cough and roll over in bed.  What could this be?
Thanks for your question on Chat Doctor. I can understand your concern. Your pain is most likely due to pleurisy (inflammation of pleura). Since you had cough which was lasted for 4 weeks, we should definitely rule lower respiratory tract infection (LETI) because this is common after common cold and can cause pleurisy. So get done chest x-ray. You will need antibiotic, anti-inflammatory and anti histamine Chat Doctor.  If chest x-ray is normal then no need to worry about lung infection. Musculoskeletal pain can also cause similar symptoms. So take painkiller and muscle relaxant