Post-static dyskinesia is a medical term referring to pain that occurs after a period of rest. It is often associated with heel pain, specifically plantar fasciitis. This condition is characterized by an inflammation of the fibrous band of tissues that run from your toes to your heel on the bottom of your foot. The inflamed band shortens and tightens when not in use—such as when you sleep or sit for a long period of time. Then, when you rise and try to put weight on your foot, it pulls on your heel, causing a stabbing pain.  This will subside as you walk around and the tissues loosen up, however, the relief is only temporary—pain will return again following a restful state.