Do you or your family have any history of thyroid problems? Thyroid eye disease (caused by an autoimmune reaction against the tissues behind the eye) occurs most often in Graves disease (hyperthyroidism) but can also happen in Hashimoto's (hypothyroidism) patients. There is a sensation of pressure behind the eye, eventually proptosis (bulging of the eye, and you can have vertical diploplia because of the effect on the muscles around the eye.

Makes sure they check you for thyroid receptor antibodies.