I remember someone saying "it smells like s***" atleast once around the span of 7th or 8th grade (12-13 years old), but it didn't start every day until around 10th or 11th grade (15-16 years old). That was about 5 years ago, so I can't remember what I was eating back then either. I just know my diet was horrible. Pizza and Chinese food nearly everyday, all kinds of sugary snacks, rarely any water or vegetables. Fu***** horrible.
I got rid of it for about a year and half, and it came back a few months ago, so pinpointing what I ate was a little easier this time around.