I prefer to do exercise regularly and also not to eat junk food.

First of all i tell you that there is no benefit to eat less.......it could be VERY HARM FULL to your health. and if we talk about loosing weight ya it could be redused. but there are some jobs which we must do carefully.......... 1-Eat normal food. 2-avoid fast food. 3-don't eat oily food . 4-take less sweet/sugar in your daily schedule. 5-walk for atleast 5km in a day . 6- don't take stress so much. 7-do some basic exercise at home for atleast 25 minute. this is the easiest way to reduce your extra fat/weight . the things which i suggested you to do can be easily done . and i also do these things for my good fitness, you are very younger so it's my advice for you to take these things in your life for being healthy forever.. there are some more things to do but these are enough for now. well you can ask me anytime if you want, being a fitness advisor i will be helping you.

lol. You girls are always thinking that. I'm sure you're not getting fat. You're young and still growing. As long as you are eating healthy and exercising regularly you should be fine. If you're hungry then eat. Just don't eat past the point of your hunger. :)

I think you must go to a doctor. It's the best thing. My friend did that and she became slim again, don't be afraid!