send shivers down someone's spine vs unhinge

send shivers down someone's spine

verb
  • To terrify; to make someone feel extremely nervous. 

unhinge

verb
  • To mentally disturb. 

  • To remove the leaf of a door or a window from its supporting hinges. 

  • To dislocate. 

How often have the words send shivers down someone's spine and unhinge occurred in a corpus of books? (source: Google Ngram Viewer )