<s>[INST] I will be 34 years old in June this year. 5 feet 7, 70kg. I have been having pain in my upper right abdomen since 1996. At one point my doctor said it is cholecystitis; in recent they say it is ulcer. I have been going through treatments. I eat selected foods because some foods especially sugary and/or carbonated drinks. I notice discomfort there like a bag with excessive gas build up and belching every now and them, with attendant loss of strength. [/INST] Hi. History noted - pain in my upper right abdomen since 1996 - typical problem with sugary and carbonated Chat Doctor.  I would think of Acid Peptic disease with secondary changes and may be a mild IBS. Upper GI endoscopy to rule out problems with esophagus, stomach and duodenum will help as also ultrasonography and other investigations. Avoiding such beverages and foods which cause upper abdominal pain is a part of the treatment which you have to continue and also have to take symptomatic and definitive treatment as per investigations. </s>