It is the self judging the self. A moment of shame may be humiliation so painful or an indignity so profound that one feels one has been robbed of her or his dignity or exposed as basically inadequate, bad, or worthy of rejection.
Guilt Is a feeling of regret one has about behavior that has violated a personal value.
Guilt does not reflect directly upon one's identity nor diminish one's sense of personal worth. It has many variations and never looks exactly alike in any two individuals. The sudden feeling strong shame is an overpowering experience. Most would love to respond to shameful situations with dignity, grace, and poise. If only our bodies would cooperate.