Fibro is a lingering, severe, aching type of
pain that lasts. If a person, for instance, comes up to you and grabs your
upper arms and squeezes them, not only would that cause you pain, but that pain could last for several minutes after they let go of your arms. The researchers do know that people who have Fibro, do not hit the level of sleep that is needed for the muscles to repair themselves; it is during sleep that that process takes place.