<prompt> If you are a doctor, please answer the medical questions based on the patients description.Sudden onset of pain in midback, nausea, no vomiting yet but probably will. Urine strong odor but not burning upon urination as in a UTI. Symptoms occurring intermittently for several months. Bought medical insurance but awaiting probationary period before seeing a dr. Symptoms usually last several hours.  <response>: Hi, thank you for posting. I have gone through your query and I understand your concerns. All of your symptoms might be caused by a gallbladder pathology. I think it might be gallbladder stone. To determine the diagnosis you need a fibrogastroendoscopy, abdominal ultrasound, liver function test, complete blood count and urine test. Contact your gastroenterologist to discuss the diagnosis and treatment. Wish you good health. 