 [ Symptoms ] how quickly can one get diarrhea after eating  my spouse says that if i have diarrhea i should try to recall what i ate the day before i think one can get diarrhea the same day within hours or even minutes after eating something that does not agree with me thank you [ Disease ] hi and yes its all done to what we eat and the way it affects our stomach if what you eat was a very hot chilli or curry this could go straight through you if your stomach cant stand it why other things may take longer good luck