A good place to look for thyroid disorder symptoms is your family history. If you have a first-degree relative (a parent, sibling, or child) with hyperthyroidism, hypothyroidism, or thyroid nodules, you would benefit from thyroid evaluation. Women are much more likely to be thyroid patients than men.
If you are taking Lithium or Amiodarone, consider a thyroid evaluation.
If you have had any of the following radiation therapies, consider a thyroid evaluation with your endocrinologist: radiation therapy for tonsils, radiation therapy for an enlarged thymus, or radiation therapy for acne.
If you lived near Chernobyl at the time (1986) of the nuclear accident or the Fukushima Daiichi accident, consider a thyroid evaluation.
The thyroid is located in the front of your neck. If is is enlarged, it is called a goiter.