Mine also started during the 3rd year of high school. It was the summer before my junior year. Think it was 2008.
Before it all started, I had severe constipation for a few months. During these 2-3 months, I lost 20 pounds. (About 12% of my BW)
Now after 3 years, I have managed to minimize the "fecal Body Odor
", but still have excessive, uncontrollable gas.
You can message me if you want to know what I did to minimize this issue.