noun
stomachache; stomach pain
General term for pain in the stomach; used in both everyday and medical contexts. The medical term 'gastralgia' is a direct equivalent but less common in casual English.
昨夜から胃痛がひどくて、よく眠れなかった。
I've had a bad stomachache since last night and couldn't sleep well.
ストレスが原因で胃痛を起こすことがある。
Stress can sometimes cause stomach pain.