If you want to take a step toward better health, see a foot doctor. You might learn something about a totally different (and seemingly unrelated) part of your body. Sometimes, “your feet are the first place where you can see warning signs of things like diabetes or vascular disease or even skin cancer,” says Hira Mirza, a podiatrist at CLS Health in Houston. “If you look closely enough, it really is a window to the rest of your health.” We asked experts about the foot-related symptoms you