IAAF track and field world championships: What TV channel, how to watch online livestream. South Korea's Noh Si-hwan lays on the track as Japan's Kazuhiro Maeda crosses the line after finishing the men's marathon at the World Athletics Championships at the Bird's Nest stadium in Beijing, Saturday, Aug. 22, 2015.
The most common symptom of RSD is a continuous, intense pain that gets worse rather than better. Reflex sympathetic dystrophy (RSD), also known as complex regional pain syndrome (CRPS I), is a chronic pain condition that is believed to be the result of problems in the central or peripheral nervous system.ervous System Home. Reflex sympathetic dystrophy (RSD), also known as complex regional pain syndrome (CRPS I), is a chronic pain condition that is believed to be the result of problems in the central or peripheral nervous system.
The pain of a heart attack is often more widespread, whereas costochondritis pain is usually focused on a more defined area. Heart attack pain usually feels as if it's coming from under your breastbone, while costochondritis pain seems to come from the breastbone itself.