Fibromyalgia symptoms include widespread body pain, fatigue, poor sleep, and mood problems. But all of these symptoms are common to many other conditions. And because fibromyalgia symptoms can occur alone or along with other conditions, it can take time to tease out which symptom is caused by what problem. To make things even more confusing, fibromyalgia symptoms can come and go over time. That’s why it can take a long time to go from fibromyalgia symptoms to a fibromyalgia diagnosis. Because there is no test for fibromyalgia, your doctor must rely solely on your group of symptoms to make a diagnosis.