Toni Braxton has been rushed to hospital and then transferred to a specialist facility to treat her lupus.
The condition usually affects the skin and can include severe swelling.
Toni, 48, was admitted to a Los Angeles hospital but later taken to a hospital in Atlanta.
The Breathe Again singer was diagnosed with the disease in 2010.
Her berk Birdman has rushed to be by her side, jetting in from New York.
Toni’s sister Tamar posted a video of her in her hospital bed and said on Instagram: “#LUPUSSUCKS shout out to all Lupus superwomen and men who knows what that’s like”.