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:
Both Graves' disease and chronic thyroiditis (Hashimoto's thyroiditis) are autoimmune diseases of thyroid gland. Graves' disease is caused by stimulation of TSH receptor located on the thyroid gland by an antibody, which is known as TSH receptor antibody (TRAb).