Celiodynia

Pain in the abdominal cavity; another term for abdominal pain or celialgia using the '-dynia' suffix.

From Greek 'koilia' (belly) + 'odyne' (pain). This variant of celialgia uses the '-dynia' suffix, which is an alternative to '-algia' for describing pain, seen in terms like 'myodynia' and 'coccydynia'.