How Do You Know If You Have a Thyroid Problem?

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Depression; fatigue; memory loss; trouble concentrating; coarse, dry skin and hair; sensitivity to the cold; constipation; and an increase in LDL in the blood, or high cholesterol, are all signs of hypothyroidism, which is characterized by an underactive thyroid, according to Dr. Nancy Snyderman. Other symptoms include weight gain, a puffy face, weakness, muscle aches, stiffness, joint pain, irregular menstrual flow and thinning hair, according to the Mayo Clinic.