Fatigue is a common complaint in a physician’s office. Many people are feeling run down and tired. They don’t wake up rested and have a lack of energy in completing daily tasks of life. Naturopathic medicine aims to find the cause of fatigue. Although there are many reasons for fatigue ranging from insomnia to vitamin and mineral deficiencies, under active thyroid function – or hypothyroidism – is often a part of the problem. Your thyroid could be making you tired.