<s>[INST] i have been having lower abdomen pain that radiates to my lower right side of my back down my right leg and stops at the knee. when the pain gets so bad i start to feel sick to the stomch. they have ran tests on me think it was something to do with my woman parts but always come up with nothing. this pain comes and goes but when it comes it makes me fall forward in pain because of how sharp it comes on. what do i do now? [/INST] Hi welcome to Chat Doctor forum.  Thanks for calling Chat Doctor. Forum.  You have lower abdominal pain, radiates to the right side, of the back, down the right leg and stops at the knee. It is intermittent and unbearable. Tests show nothing.  It appears to be the urinary tract infection, or stone in the urinary tract especially at the lower end of the writer.  I advise you to consult a urologist for diagnosis and treatment. You may need to have M.R.I., and ureteroscopy besides other routine tests for confirmation.  Wishing for a quick and complete recovery.  Best regards. </s>