agonizing vs smarting

agonizing

adj
  • Causing physical or mental agony. 

noun
  • The act of one who agonizes. 

smarting

adj
  • Experiencing emotional pain or embarrassment. 

  • Painful, sore. 

noun
  • A sensation that smarts or stings. 

How often have the words agonizing and smarting occurred in a corpus of books? (source: Google Ngram Viewer )