And because I was new to that world, I went along with it."

According to theMayo Clinic, Hashimoto’s disease is a condition in which your immune system attacks your thyroid.

“It was a rediscovery for me that curly hair is actually so versatile,” the singer wrote.

Leona Lewis smiling

“I didn’t see the beauty in my natural state, but now I do.”

Leona Lewis smiling with straight hair vs. curly hair