Hi ! Good evening. I am Dr Shareef answering your query. If I were your doctor, I would go for an ultrasound scanning of your upper abdomen to rule out any collection though unlikely. It could just be a co incidental muscular pain, which would be relieved with a course of anti inflammatory drug along with a acid reducing agent. 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.