If you have any type of
stomach sensitivity, things like
coffee, tea, chocolate are all going to irritate the
stomach, its the high level of acidity. While nexium will help with gerd, it wont do anything for gallbladder issues.
I know you said you stopped coffee, but do you consume anything else like tea, tomato sauce, garlic, onions, spicy foods, greasy foods, fatty foods? If so, eliminate all of these things and see if the pain goes away.