Hi ! Good evening. i am Dr Shareef answering your query. The kind of acute pain you described could be due to a lot many intra-abdominal conditions starting from infective/inflammatory conditions of the GI tract to stones in gall bladder or urinary system. It might not be possible to opine on the cause without a clinical examination of the patient and other related investigations like an ultrasound abdomen. Therefore, I would advise you to continue with the medications advised by your doctor in the ER, and wait for the investigations to be done to make a diagnosis. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.