Pain is one of the most debilitating symptoms of fibromyalgia and often is a major contributor to the fatigue and sleeplessness that become part of a vicious cycle. More pain, less sleep, less sleep, more pain. The more tired you are the less able to you are mentally tolerate the pain, thus the more focus it gets and the worse you feel. The less you sleep the more tired you are and the more pain you feel and you get where I’m going yeah? It sucks.