YOU SAID:

I had intense diarrhea

INTO JAPANESE

私は激しい下痢をした

BACK INTO ENGLISH

I had severe diarrhea.

INTO JAPANESE

ひどい下痢をしました。

BACK INTO ENGLISH

I had terrible diarrhea.

INTO JAPANESE

ひどい下痢をしました。

BACK INTO ENGLISH

I had terrible diarrhea.