Troubles running?

Okay i'm in athletics, usually we run a mile ( pretty easy) but i have trouble? When i'm running i always get out of breath and it hurts to inhale. My face gets red easy and when i am done running it is REALLY red. Idk what it is though no other girl has these problems but me. I get tired and i'm gasping for air. I am not fat really i weigh 130 but i don't know what the problem is. Anyone had this type of problem? I don't think its the weather, something worse.