Sia is opening up about her health.

The singer, 43, took to Twitter Friday to reveal she is suffering from chronic pain. She also revealed she has Ehlers-Danlos syndrome.

"Hey, I'm suffering with chronic pain, a neurological disease, ehlers danlos and I just wanted to say to those of you suffering from pain, whether physical or emotional, I love you, keep going," she wrote. "Life is (expletive) hard. Pain is demoralizing, and you're not alone."

According to The Mayo Clinic, Ehlers-Danlos syndrome is "a group of inherited disorders that affect your connective tissues," including your skin, joints and blood vessel walls. People with the syndrome usually have "overly flexible joints and stretchy, fragile skin," the site states.

Sia's rep declined further comment.

Sia's followers replied to the singer's announcement with encouragement, including fellow singer Mary Lambert.

"You inspire so many of us, @Sia. Take care of your body & heart, on your terms. We love you right back," she tweeted.

Sia, who is from Australia, is best known for her hits "Chandelier," "Cheap Thrills" and "Elastic Heart."

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