Why am I eating alot?

Before you read know that I am 13 years old. Today my diet consisted of 4 bowls of froot loops, 6 chicken wings, left over noodles, chocolate popsicle, grape popsicle, chocolate milkshake, fudge round, little bit of dill pickle chips...and I'm STILL hungry!! I run track and I run it very well, in fact track just ended for us modified on Friday (well meaning I can run a 1500 in 5:16 and I'm in 7th grade). I think I have a very fast metabolism but I have never eaten this much in a whole day! I AM STILL HUNGRY AS I TYPE! HELP!