Do i overeat?

Ok I am really concerned if I am eating more than the suggested dose of food.
There are many times a week where I just pig out, and sometimes this will be non - stop for days, and I can't help,I really want to be fit, but how do I do that when I have...

the cravings for food? Is there a pill I can take?

I am currently 13, 5'9, 120 pounds.

 
You have a BMI of 17.72.

BMI is equal to or less than 18.5 (Underweight)
A lean BMI can indicate that your weight maybe too low. You should consult your physician to determine if you should gain weight, as low body mass can decrease your body's immune system, which could lead to ilness such as disappearance of periods (women), bone loss, malnutrition and other conditions. The lower your BMI the greater these risks become.

Nah you're down right perfect. Your metabolism is fast is all. So when you eat junky foods it doesnt really affect you.

You are actually underweight for your height. I wouldn't worry too much about it.

ok, thx.