It is an incurable autoimmune disorder which causes stiff and painful joints and she just remembers being exhausted and being in pain.

“I looked at my husband David [Lee], and told him, ‘I literally can’t move, I’m so exhausted and in so much pain,” she told PEOPLE. “I felt like I’d been hit by a car and had mono at the same time.”

“It could have been cancer; it could have been a million things,” she continued. “Being a strong athlete and going from playing three hours on a tennis court and then the next day barely being able to get out of bed, raised a lot of question marks.”

“It was a big shock,” she said. “I’ve never had anyone in my family with RA or an immune disease — I just couldn’t understand how a fit young person could have this disease.”

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