have a bug in one’s ear vs head over heels

have a bug in one’s ear

head over heels

adv

  • Hopelessly, madly, to distraction, deeply, utterly. 

  • At top speed; frantically. 

  • Tumbling upside down; somersaulting. 

adj

  • Hopelessly smitten, madly in love. 

How often have the words have a bug in one’s ear and head over heels occurred in a corpus of books? (source: Google Ngram Viewer )