"Are you sure you're not anorexic?"

For as long as I can remember, I've always eaten like a horse, yet I never gain weight. 

One day in high school, someone asked me, "Are you sure you're not anorexic?"

This comment took me by surprise, and ever since then I've always thought of myself as "anorexically skinny," even though I know that I am not anorexic and never have been.