Had an us in march which showed a fatty liver, gall sludge and a stone. today my ct scan shows absolutely nothing. and i have attacks of excruciating pain that wraps around my abdomen, gastroparesis and jaundice during the attack. what am i missing?

There are different possibilities including the fact that US is preferred imaging rather than CT scan for the pathology you described. The CT may have been done in conjunction to see if there may be other things apart from the gall stone. It is important to understand that you should see a nutritionist that would help you with your food choices that could reverse all the pathology described intime