Outside Foot Pain

My 10y old daughter plays tackle football. She came home from practice complaining of foot pain on the "bone on the outside" of her feet. The left foot is worse than the right. The left foot is slightly swollen and inflamed. My first thought is that her foot has grown since she started this football season in August and perhaps her cleats are too narrow now. (She does have wide feet.) I'm not sure why this would happen all of a sudden and to both feet at the same time. She has not had foot problems or complaints about these cleats in the past.