I am a 33 year old female in pretty good health but having lower left abdominal and back pain with a deep burning sensation in my back. My periods have been regular until a few months ago when they started coming earlier and earlier and did not have one at all for July.
Hi. Thanks for your query. Such a pain without any history related to the stools and urinary complaints can be due to Gynecological problems. You may have:Chronic urinary tract infection Pelvic inflammatory diseaseProlapse of the uterus along with systole. Get an opinion of a Surgeon and a Gynecologist and follow the advice as per the findings.  The back pain in your case looks to be a referred one from the abdominal conditions. Yet it is better to get this checked by your Doctor and an n Orthopedic Surgeon to make sure it is not a local problem of the muscles or spine.