dry-heave vs fetch up

dry-heave

verb

  • To attempt to vomit with the ejection of only gas. 

noun

  • An attempt to vomit that ejects only gas. 

fetch up

verb

  • To vomit. 

  • To arrive somewhere, especially unexpectedly. 

How often have the words dry-heave and fetch up occurred in a corpus of books? (source: Google Ngram Viewer )