Toni Braxton Hospitalized Birdman Rushes to Her Side

10/3/2016 1:35 PM PDT

Toni Braxton Hospitalized in ATL Due to Lupus Battle

EXCLUSIVE

3:00 PM PT -- Toni is now in an L.A. area hospital. She was initially checked out by a doctor in Atlanta, but we're told she flew to L.A. late last week and was admitted for treatment.

A rep confirms Toni was getting treated for lupus, but says she's doing better now, and she's hoping to start rehearsals soon for an upcoming tour.Toni Braxton was laid up in a hospital and in serious condition stemming from her battle with lupus ... TMZ has learned.

We're told Toni's been hospitalized for 4 days. It's unclear if she checked herself in or if she was transported by ambulance. When Birdman got the news, we're told he hopped on a jet from New York -- where he was on the road with Jacquees -- to be with her.

Toni and Birdman started dating seriously earlier this year.

She went public with her lupus diagnosis in 2010.