The Oxford Thesaurus An A-Z Dictionary of Synonyms - pangn.

1) pain, stab, ache, pinch, twinge, stitch, spasm: I felt a sharp pang of hunger. 2) qualm, hesitation, scruple, misgiving, remorse, regret, contrition, contriteness, self-reproach, mortification, guilt, anguish, discomfort, malaise: Does Claire feel the slightest pangs for treating him badly?