Check for any element of autoimmune thyroiditis where you can have constipation, difficulty concentrating, dry skin, enlarged neck or goiter, fatigue, hair loss, heavy periods and irregular, intolerance
to cold, mild
weight gain, joint stiffness,
weight gain and swelling of face. Lab tests
to determine thyroid function are free T4 test low, Serum TSH high, T3 low or normal, Thyroid autoantibodies incl. antithyroid peroxidase antibody and antithyroglobulin antibody. Hope this helps. Take care.