Is something wrong or is it no big deal?

When i walk, i step on the outside edges of my feet so that the bottoms of my feet are almost facing each other. the slope isn't crazy, its like a 20 degree angle. i also walk sort of like the way models do, stepping inward. when i walk kon sand, my footprints fall in a straight line. i didn't really notice until today when my friend pointed it out. is this a problem or is it fine?