It's overly sensitive to the width of the shoe. The right area supporting the little toes (right foot) will get this concoction of pain and numbness like a lot of pressure was put on it, but also the blood partly cut off. This happens when I'm running long enough or walking a long time, and is made worse if the shoe isn't a tight fit. The pinkie toe kind of pops in and out of place, which I'm not sure is correlated.