I am 30YO and have been having what I believe is gallbladder problems for about a month. I have had four attacks and have some level of pain/discomfort most of the time on my right side and behind my right shoulder blade. So far I have had an ultrasound (no stones), endoscopy (no problems), celiac test (negative) and a HIDA scan (GEF of 92%). My GI wants to do a MRI next. Last weekend I ran into an old acquaintance who had the exact same symptoms and test results. She suffered a year before she found a doctor who helped her. He diagnosed her with overactive gallbladder due to her high GEF (95%). She had her gallbladder removed three weeks ago and her symptoms are gone. Upon removal of her gallbladder they found lesions and scar tissue from the attacks. I brought this up with my GI and he said that he has never heard of an overactive gallbladder and that 92% was great. Is there such a thing as an overactive gallbladder? I've only been able to find a few articles on the topic. Thank you.