inquietude vs twitchiness

inquietude

noun
  • A condition of being restless, uneasy or nervous. 

twitchiness

noun
  • The state of being twitchy, physical restlessness. 

  • The state of being nervous and unsettled; edginess. 

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