I'm 14 years old, 5'4, and 104 pounds? But my face if fat?

As you can see, I'm a very skinny weight. But my face, although it doesn't have a wide frame, is really round! I feel so bad about it because when I see my pictures it's always my face, not my body. So what can I do about this? And why is my face fat? I can't go on a diet... because then I will look anorexic. And I already eat healthily and normally and exercise a lot (swimming 7 times a week?) Soo... how can I fix this?