<s>[INST] Hi, I am a 45 year old female. I started swimming several months ago. This past week I started experiencing right dull flank pain, while swimming. I am not having any symptoms of an UTI, but this flank pain is very uncomfortable. Could I be doing some harm to my body, by swimming? [/INST] HI. You have a typical history of flank pain while swimming. As you may be aware of, flank muscles are most active during swimming and must have been sprained causing you the dull ache. If you do not have any other symptoms which you have categorically denied, I would go for spam of muscle and advise you the following:Rest and avoid any activity which can enhance the pain more. Take a muscle relaxant, anti-inflammatory medicines and apply rubrafacient ointments locally to give warmth and soothing. IF you develop associated symptoms of any nature consult your Doctor for clinical examination and treatment accordingly. </s>