“…The most frequent and typical symptoms of FM are generalised pain, stiffness, fatigue, and poor sleep (9), but the defining symptom is widespread chronic pain lasting at least three months, usually in all four limbs and the upper or lower back. The pain has been described in many ways (burning, searing, tingling, shooting, stabbing, deeply aching, sharp, or "feeling bruised all REVIEW Fibromyalgia and arthritides over") and, like stiffness, it is often worsened by cold or damp weather, anxiety or stress, excessive or too little physical activity, poor sleep, and noise (1,9). About 65% of the patients say they "hurt all over", and this may be useful in differentiating FM from other conditions (8,9).…”