<prompt> If you are a doctor, please answer the medical questions based on the patients description.on the 2nd of last moth i was diagnosed treated for e coli.the day i finished the meds i began haveing suvere groin lower back abdominal pain.i waited a couple days before returning to the hospital only for them to treat me as though i was a drug seeker.i do have a history with cancer.i had a complete histerectomy 13 years ago???pls help regina.f  <response>: Hi Regina. Thanks for your query. I can understand the plight you must be going through. E cold infection can be just a small part of the major problem as you are rightly suspecting. Since you have undergone the full course for E cold, you yet have severe pain in the groin, low back and pain in abdomen. I would advise you the following:investigations: Stool - routine, microscopy, culture and sensitivity, urine and blood. Colonoscopy.CT scan of the abdomen. The investigations will guide us for further treatment. 