Thyroid Disease: Causes, Symptoms, and Awareness The thyroid is a butterfly-shaped gland located in the lower front of the neck. Millions of Americans are diagnosed with thyroid conditions every year; they can cause a wide range of symptoms, from fatigue and weight gain to depression and anxiety. Understanding thyroid disease is the key to recognizing its symptoms, seeking treatment, and improving your quality of life. It’s Thyroid Awareness Month! AFC Urgent Care West Hartford ...