18. Venus Williams
Tennis superstar Venus Williams first experienced symptoms including fatigue and shortness of breath. She explains that no matter how hard she worked, she was always exhausted and out of breath. This began to frustrate her, even more so when the symptoms got so bad that she couldn’t play professional tennis anymore. Seven years passed before Venus Williams finally received a diagnosis of an autoimmune disease which is called Sjogren’s syndrome. This isn’t an illness that can be cured, but it can be managed, and on the proper medication, Venus is back in good health.