bubble guts vs diarrhea

bubble guts

noun
  • A condition where one experiences discomfort, bloating, and cramping in the stomach or digestive tract due to gases caused by extreme hunger or explosive pre-diarrhoea. 

diarrhea

noun
  • A gastrointestinal disorder characterized by frequent and very soft or watery bowel movements. 

  • The watery or very soft excrement that comes from such bowel movements. 

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