I'm genetically skinny. As in BMI 16 skinny.
I have to eat 3000+ calories a day, every hour or I get trembly and shit. And yet I don't exercise. I'm the most out-of-shape twig ever. Yet when I got tested, no hyperthyroidism.
My entire family is skinny, but it doesn't seem right that I have to eat so much. Not when I see fat people staying chunky on 1000 calorie Slim Fast hell diets.