Yeah this pain is really sharp and stops me driving home sometimes untill it recedes.If it's related to warming up your feet quite fast after them being cold and wet for some time, especially if your toes go red, it's probably just chilblains. They can be alarmingly painful. I occasionally get them after going for a cold / wet run on the fells in winter then jumping straight into a hot bath, or toasting my frozen feet in front of a revved up stove. It seems my grandma was right when she used to warn me about this (and I of course ignored it, LOL).