See a healthcare professional for an evaluation
Review symptoms and medical history
Get a physical exam of the neck and thyroid
Order blood tests for TSH
Order blood tests for free T4
Order blood tests for free T3 if needed
Check thyroid antibodies if autoimmune disease is suspected
Get a thyroid ultrasound if a lump or enlargement is present
Get a radioactive iodine uptake scan if indicated
Repeat testing if results are abnormal or symptoms change