<s>[INST] I have severe stomach pain in my lower stomach, right beneath my belly button, it feels like it is tightening up. I am not able to stand up straight. What is it? Ive had this pain for about 3 years now and it doesnt ever come around my period time, so I know it is not caused by that. [/INST] Hello! I had gone through your query and understand your concern. There are many conditions that can cause such abdominal pain. In the way you describe it might be:-Peptic ulcer in your stomach or in duodenum. In this case the pain is relieved by antacids or PPI Chat Doctor. The diagnosis is confirmed by upper GI endoscopy.-Chronic Pancreatitis(the inflammation of pancreas). In this case the pain worsens after eating. The diagnosis is confirmed by abdominal ultrasound.-Cholecystitis the inflammation of your gallbladder. If this condition persists for a prolonged period of time or if you have repeated attacks, it is called chronic cholecystitis. This condition usually begins with the formation of gallstones in the gallbladder. The diagnosis is confirmed by abdominal ultrasound, abdominal CT-scan etc. I suggest consulting a physician(general surgeon or gastroenterologist) and get this tests and imaging studies done to find out the right cause of your abdominal pain in order to get the right treatment. Hope my answer has helped. Take care </s>