You need to get a hida scan to rule out gallbladder. My ultrasound showed nothing gallbladder related, however it did show a fatty liver. Was told not to really worry about it. My uncle and aunt have it as well. It can be due to excess alchohol, some drugs, obesity, heredity or for no reason at all. The hida scan is a test that shows whether or not your gallbladder is functioning properly. Out mine came. Still have lots of pain in right rib area, etc. Good luck. Push your dr. for the hida scan.