anguish vs self-flagellation

anguish

noun

  • Extreme pain, either of body or mind; excruciating distress. 

verb

  • To cause to suffer pain. 

  • To suffer pain. 

self-flagellation

noun

  • Intense feelings of guilt. 

  • The practice of whipping oneself as penance for sins. 

How often have the words anguish and self-flagellation occurred in a corpus of books? (source: Google Ngram Viewer )