The ' means feet. One foot is 12 inches. Multiply 5*12 = 60 inches. The  means inches so 5'6 means 5 feet plus 6 inches, so do that, 60 + 6 = 66 inches.
Thyroiditis is an inflammation of the thyroid gland. It may be painful and tender when caused by an infection or trauma, or painless when caused by an autoimmune condition or medications. There are several types of thyroiditis. The most common forms are:
If you have a family member with hypothyroidism, your risk for subclinical is increased. Any of the following can cause hypothyroidism: Autoimmune disease, such as inflammation of your thyroid, or Hashimoto disease.