Why am I skinny?

It depends what type of skinny you mean. If you mean anorexic-skinny and you don't have anorexia, you might have a parasite called a tape worm. Tape worms infect your stomach, eating the nutrients that you need to stay healthy and strong. If you mean skinny as in muscle-y and healthy, you might have a high metabolism or you are eating right and staying focused with exorcise. Or, maybe you're not eating enough. Have you ever seen food, had thought you were terribly hungry, but you just couldn't eat it or found this regular loved food you have eaten before repulsing? You might have anorexia. A decease were you wont eat, can't eat, won't eat or make yourself throw up if you do eat.