have a fit vs seethe

have a fit

verb
  • To become suddenly enraged. 

  • To experience an epileptic seizure. 

seethe

verb
  • To be in an agitated or angry mental state, as if boiling. 

  • To buzz with activity. 

  • To foam in an agitated manner, as if boiling. 

  • To boil vigorously. 

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