Foot pain has stopped me from running for about two months. Gout! Do you know what that is? It is a type of arthritis...specifically, an excess of uric acid in your system. The excess usually settles in the knuckles of your toe, often big toe. The uric acid crystalizes. The area swells and feels like needles stabbing. Very painful. This problem has occurred with me occasionally, only lasting a week or so. This time is has lasted a long time and has been much more painful. If you suffer this problem, read this Mayo Clinic site for more information including causes, symptoms, treatment, and prevention.