Wendy Williams Reveals She has Graves' Disease On Wednesday morning, Williams said on Tuesday a doctor officially diagnosed her with the autoimmune disease that affects the thyroid. She describe the symptoms as being Williams confirmed she will be taking a three-week vacation, making it the first time ever in her show's run. Wendy Williams in Instagram post News come months after Williams fainted on live television during a Halloween episode of her show. She did not directly link the incident to her diagnosis.