Fibromyalgia and Myofascial Pain Syndrome are chronic conditions, most easily defined as interference with how the brain processes pain signals. These conditions can cause heightened pain sensitivity, or the feeling of being in pain for no reason at all.
The main symptom of Fibromyalgia is long lasting pain throughout the body. Myofascial Pain Syndrome is similar, though long lasting pain is tied exclusively to your muscles. Doctors are still not entirely sure how or why these conditions develop – they may be tied to genetics or various infections, or triggered by physical or emotional trauma. This makes these conditions hard to diagnose, though it is shown that trigger points are more common in women than men.