Hi Andrew! Welcome to the miserable world of gall bladder confusion! Your hida scan indicated that you are on the low end of normal for its functioning. My guess (and this is just a wild guess, mind you) is that your gall bladder simply does not function well. It could be from the GB itself having "Sludge" in the bottom of it. It could be that you have adheisions growing in there. It could be that your pain is caused by spasms of the bile duct. I have had many of the same issues as you, and although i had mine removed, it failed to improve my symptoms, which in fact worsened since having my GB removed. Here is a little advice for you--try seeking some alternative therapies and see if they work for you. I did acupuncture, and now am fairly symptom-free. It was the best thing I ever did. I cannot guarantee that it will cure your symptoms, but it certainly couldn't hurt to try. Best of luck, and I am sorry that you are having troubles.