Hello! Thank you for the query. The movement you have noticed is caused by intestinal movements. Sometimes it can be visible in thin person, in case of hernia in this area. Also bowels obstruction can force intestines to work harder and cause some visible movements. Upper right abdominal pain is usually caused by gallstones or stomach issues (peptic ulcer, inflammation). Gallstones usually give pain which radiates to the back. Stomach pain does not radiate anywhere. Both pains are related to the meals. Bowels obstruction gives cramps, nausea, lack of gas and stool. I suggest you to have some diagnostics. You should start with abdominal ultrasound and blood work. If nothing will be found, gastroscopy should be also considered. Hope this will help. Regards.