What's difference between the pain of a gallstone and a stomach ulcer?

Similar: Both of these conditions can cause the same upper abdominal discomfort, maybe with nausea & vomiting.

SimilarButDifferent: Both of these diseases may cause mid-upper abdominal pain. However, ulcer pain tends to be burning and relieved by food ("hunger" pain). In contrast, a gallbladder attack is often precipitated by food (esp fatty foods) and causes a dull, constant, pressure-like pain. Both may be associated with nausea+/-vomiting, although this is more common w/gallbladder attacks.