head trip vs tunnel vision

head trip

noun
  • A state of mind in which one is distracted, disturbed, or unnerved, whether self-induced or resulting from ill-treatment by others. 

  • An experience or set of experiences which is intellectually challenging or stimulating. 

  • An ego trip. 

  • A disorienting, exciting experience, especially one consisting mainly of striking sensory impressions. 

tunnel vision

noun
  • The tendency to focus one's attention on one specific idea or viewpoint, to the exclusion of everything else. 

  • A restricted field of vision as the result of looking through some type of object or a medical condition. 

How often have the words head trip and tunnel vision occurred in a corpus of books? (source: Google Ngram Viewer )