I'm running London on April 21. A week or so ago, my nephew fell knee first onto my foot. To begin i could walk ok and the pain (centre of the foot, just above the toes) was manageable. i iced it, used anti-inflammotories and rested it for a week, which seemed to help. Last weekend was my final long run – a 20-miler. I could feel the foot but it caused no problems until 15 miles when the pain started to increase, so I struggled through the final five at a slower pace. The next morning was agony. At first i could hardly walk or put any weight on it. However, as i moved it more and walked to work (slowly), the pain eased. My foot seizes up with inactivity, but eases with movement. it still hurts with certain movements, but i don't know how to handle the next couple of weeks leading up to the race.