Hi-I'm new to this site, but have found it very interesting. I am having excruciating foot pain when walking, its like on the top of my foot, and is like a knife stabbing top of foot, and pain shoots toward big toe, it has hurt almost to the point of tears a couple of times. Any suggestions on what this could be, or how long I should hobble around before I go see a doctor? Going on the 3rd-4th day now, and it seems to only get better with rest, and throbs some even then, but as soon as I try to walk, there it goes again. Thanks! :)