Kerry Katona visited the hospital on Saturday afternoon with a mystery condition.
The former Atomic Kitten singer, 40, took to her Instagram Stories to share the concerning news with a picture of herself with a needle in her arm.
She admitted that she'd didn't expect her Saturday night to take a turn for the worse, but didn't explain why she had ended up in hospital.
In the snap, Kerry was sat on a chair in the hospital with the needle going into her right arm.
Her face was cut off from the picture, with only her pink top and blue trousers on display, as she held her arm up for the camera.
"Not the way I wanted to spend my Saturday," Kerry captioned the photo.
She finished the post with a face palm emoji.
Kerry hasn't posted on her Instagram Stories since she shared the concerning update.
The Mirror has contacted Kerry's rep and is awaiting comment.
Kerry had seemed to be in good spirits earlier on in the day.
On her Stories she had been promoting her upcoming adult pantomime Throbbin Hood.
She stars as Maid Marian in the show alongside Britain's Got Talent winner Jai McDowall as Robin Hood, and RuPaul's Drag Race UK star Divina De Campo as Dame Dixie.
It comes after Kerry revealed her daughter takes her saucy photos for her OnlyFans page.
She said Heidi, 13, often helps sorting the snaps, and her children don't mind her posting raunchy content as they like the money it brings in.
