expression, godan verb (-su)
get an upset stomach; have diarrhea
Common expression for stomach trouble, ranging from mild indigestion to diarrhea. Often used when food or stress causes the problem.
冷たいものを食べ過ぎて腹を壊した。
I ate too much cold food and got an upset stomach.
海外旅行でよく腹を
I often get an upset stomach when traveling abroad.