feel lightheaded vs swoon

feel lightheaded

swoon

verb
  • To be overwhelmed by emotion, especially infatuation. 

  • To make a moan, sigh, or some other sound expressing infatuation or affection. 

  • To faint, to lose consciousness. 

noun
  • A faint. 

  • An infatuation. 

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