The other day I started feeling this weird tingly feeling in my foot. It feels like it is on the verge of falling asleep, but then it doesn't. It sort of feels like it has all the blood rushing from it and when I stand up, I expect the blood to go rushing back, but it doesn't. It's like a "cold" feeling inside too. It's been like this for two days. Any idea what it could be or how I can get it to feel normal. It's driving me crazy. I can walk just fine and it has the normal color, but just feels really weird.