Been obese since highschool. i'm for sure not a big eater,even smaller portion than a small-sized lady.but i still have bmi over 35.what's wrong?

Remember: The determinations of someone's overall weight is complicated. While part of the component is how much you are taking in caloric wise, the other part is based on how active you are physical but also how active you are metabolically. Some people have slower metabolisms than others, which means they have to be very careful about their intake and activity levels.