It would be useful to have more symptom information. Level of pain? Dull, stabbing, achy, radiating (where)? Local or generalized? Previous medical history, GI/GU issues or normal (i.e normal digestive/urinary/bowel? current appetite/hydration? Fever/chills? Any heart issues? Exposures? - It could be many things, so important to have info. Could be too much Thanksgiving feast, a muscle pull or could be something more serious. Upper/middle abdomen could include stomach, spleen, pancreas, kidneys, adrenal gland, part of the colon, liver, gallbladder, and duodenum (upper part of small intestine) and in some cases heart. See if you can pinpoint area better from attached pic.

If experiencing severe pain, nausea/vomiting - or "coffee ground emesis" which is potential indicator of bleeding in stomach; jaundice or bloody stool (black/tarry to red) - you should seek further medical attention ASAP. Not all docs are evil - seek out someone you can trust to give you appropriate options.