rumination vs self-examination

rumination

noun
  • Deep thought or consideration. 

  • The act of ruminating; i.e. chewing cud. 

  • Negative cyclic thinking; persistent and recurrent worrying or brooding. 

  • An eating disorder characterized by repetitive regurgitation of small amounts of food from the stomach. 

self-examination

noun
  • An examination of oneself; scrutiny of one's own state, condition, motives, etc. 

  • The action of examining one's own body for signs of illness 

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