is thyroid disease an autoimmune disease?
<answer> Yes, it is an autoimmune disease. <context> Symptoms of Autoimmune thyroid diseases. Symptoms of Autoimmune thyroid diseases: Introduction. The types and severity of symptoms of autoimmune thyroid diseases vary between individuals and are very different depending on the type of disease: Grave's disease (hyperthyroidism) or Hashimoto's thyroiditis (hypothyroidism). At the onset of Hashimoto's thyroiditis (hypothyroidism), the symptoms can be vague and develop slowly.