The toe to the right of my pinky toe on my left foot has become numb. The skin has discolored to a purple/yellowish hue and it s cold to the touch. There s no itching or burning sensation, and it doesn t hurt to put weight on it. Just tingles and feels like a rubber band is constricting it when I walk. I haven t done any sports or heavy physical activity, nor do I recall injuring my foot in the recent days. Every other toe, and all of my fingers, are fine. Any ideas?