bothering vs trigger point

bothering

noun
  • The action of troubling or disturbing someone 

trigger point

noun
  • An event, arrangement, provocation, etc. that leads a certain, generally violent or angered, action to be taken. 

  • A hyperirritable spot in the skeletal muscle; a point in tender muscle that tends to elicit pain upon pressure or touch. ᵂᵖ 

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