Fibromyalgia is a form of a chronic illness that is very hard to diagnose. Here are some common symptoms of fibromyalgia - what are some invisible symptoms of fibromyalgia. Some are Abdominal Pain, Anxiety, Cramps, Chronic Fatigue, Depression, Difficulty Speaking, Exhaustion, Fibro Fog, Headaches, Insomnia, Irritability, Migraines, Numbness, Nausea, Sensitivity to Noise, Slow Digestion, Tender Joints, Tingling, Widespread Muscle Pain. List of chronic illness symptoms and fibromyalgia signs.
