Sia spoke about her illness publicly

In an explicit post, the actress reported that she has Ehlers-Danlos syndrome.

The disease has a neurological nature. Singer Sia said that she suffers from the constant pain of a chronic form. She would like to support everyone who faced a similar problem. In the comments, fans reassured the Australian artist and wished her to recover as soon as possible.
 
Ehlers-Danlos syndrome is a whole group of disorders affecting connective tissues.