10:18 AM PT -- Hailey just addressed the health concern, saying it was akin to a stroke ... but that she's doing better now.
HB explains that this happened on Thursday morning, at which point she started having "stroke like symptoms," and was then taken to the hospital where docs found a small blood clot in her brain ... causing a lack of oxygen.
Eventually, she says her body passed it naturally within a few hours, and that she's at home and doing better now ... although she notes it was terrifying. Hailey thanks the docs and medical staff who helped, and for everyone's well-wishes.
Hailey Bieber was hospitalized with a brain condition that doctors think may be COVID-related ... sources close to Hailey tell TMZ.
We're told Hailey was admitted to a Palm Springs area hospital a few days ago after suffering a "medical emergency." We're told it affected the way she moved, and the symptoms are typical for much older people. Hailey is 25.
Our sources say doctors ran a battery of tests and are looking to see if the symptoms involve COVID. As we reported, Justin came down with COVID a few weeks ago and has since recovered. As you know, Justin had to postpone his Vegas concert after coming down with the virus.
We're told Hailey has been released from the hospital and doctors are still trying to determine what caused the issues.