- Swelling and severe pain towards the heel
- Inability or severe pain when 'pushing off'
- Difficulty placing your foot in a downward position
- Inability to stand on your toes
On a more more 'normal' note, let's pop over to one of my absolutely favorite resources for all things health related: www.webmd.com. Last November, they published an article discussing how you actually CAN push through certain types of pain and it won't damage your body. Even the medical director for the New York City Marathon says you can 'run through most pain without causing permanent damage'. Let's be smart about this though. If it's sharp, unsubsiding or changes your running style...slow down or walk. You aren't proving anything to anyone when you end up icing your knee on the sideline or are limping through work for the next two days. Build up, build up, build up.
Use your common sense to step above your Comfort Zone, but far below your Senseless and Stupid Acts zone.