When I was younger I definitely had the signs and symptoms of anorexia as a kid and teenager. It was the worst when I was a senior in high school. I was barely eating and it definitely had an affect on my mental and physical health.
I wrote a post about that not too long ago titled Battling an Eating Disorder: From Restricting to Binging that goes into more detail about the situation. But the point was that I had gotten to a point in my life where I was able to power through the hunger pains and eventually they just stopped happening altogether.