Rumination is one form of suppression of the underlying feelings and emotions that precipitate the distress but rumination works by creating a highly stable and distressingly absorbing series of negative thoughts.
Fogel argues that rumination is structurally paradoxical: it functions as suppression of affect while simultaneously generating a self-reinforcing loop of negative cognition that maintains the very distress it masks.
, Body Sense: The Science and Practice of Embodied Self-Awareness, 2009thesis