Magnesium deficiency
causes tremors, high blood pressure, fatigue,
depression, mimics fibromyalgia. Interesting to note is magnesium deficiency is associated with secondary Raynauds. Vitamin D deficiency symptoms include bone and muscle pain, depression, fatigue, high blood pressure, and also mimic fibromyalgia.
A highly significant association exists between celiac disease and autoimmune thyroiditis (Graves' disease and Hashimoto's Thyroiditis).