@nikkiole : I was really thin when I was i middle & high school - weighing between 105 and 110 pounds - was 5'3". I had massive anxiety which would be diagnosed as an anxiety disorder nowadays. Not once did my doctor ask about eating habits or if I was eating enough, etc. I was thin and wasn't usually working at it because my anxiety was so bad that food tasted wooden a lot of times. At times, I could only force myself to eat 1/2 a sandwich at lunch. It was pretty rough. Yeah, doctors need to ask about being too thin, too, because it can absolutely be an indication of anxiety, depression, or eating disorder.