navel-gazing vs self-centeredness

navel-gazing

noun
  • Excessive focus on oneself; self-indulgent introspection. 

  • (Disproportionate) concentration on a single issue. 

  • Contemplation of one's navel as an aid to meditation. 

self-centeredness

noun
  • The state, quality, or condition of being self-centered; concern only for oneself 

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