trauma

A fairly succinct definition of trauma, from abusesanctuary.blogspot.com (emphasis mine):

If we can communicate our distress to people who care about us and can respond adequately, and if we return to a state of equilibrium following a stressful event, we are in the realm of stress. If we become frozen in a state of active emotional intensity, we are experiencing an emotional trauma – even though sometimes we may not be consciously aware of the level of distress we are experiencing.