Kimberly left the house on Friday night due to medical reasons and it was confirmed yesterday that she would not be returning after being taken to hospital.
Taking to Twitter this evening, Kimberly tweeted fans: "Thank you for ur support.
"Still in the hospital having tests but fully flattered by all the love especially w pending results tomorrow."
It's not clear exactly what is wrong with Kimberly, with a spokesperson for Channel 5 saying: "This is a private matter and we will not commenting further."
In tonight's show, Steven is called to the Diary Room where Big Brother has arranged for him to speak to Kimberly.
During their chat, Kimberly tells Steven that she’s in the hospital where they’re taking care of her and that she will “slap him in the face” if he walks.
Steven then goes on to tell Kimberly how much he loves her and repeats the sentiment many times.
Before ending the call, Kimberly says she will be the “number one cheerleader” for Steven and Helen
Big Brother airs tonight at 9PM on Channel 5.
Browse pictures of this evening's show below...