Passage: Gallstones, regardless of size or number, may be asymptomatic, even for years. Such "silent stones" do not require treatment.  A characteristic symptom a gallstone attack is the presence of a colicky pain in the upper-right side of the abdomen, often accompanied by nausea and vomiting. The pain steadily increases for approximately 30 minutes to several hours. A person may also experience referred pain between the shoulder blades or below the right shoulder. Often, attacks occur after a particularly fatty meal and almost always happen at night, and after drinking.

Question: Where might someone feel discomfort during a gallstone attack?
between the shoulder blades or below the right shoulder