LILY Allen is suffering with septicaemia.
The 25-year-old singer - who earlier this week lost a six-month-old baby boy - has returned to hospital with the potentially life-threatening blood-poisoning condition, leaving her friends and family, including partner Sam Cooper, "extremely concerned".
A source told the Daily Mail: "Lily had been recuperating at home with Sam and her family, but she has been taken back to hospital and is getting the best care possible at the moment.
"Everyone is extremely concerned, but she is in the best place and luckily she was admitted quickly."
The 'Smile' hitmaker was taken by ambulance to hospital from her home in Gloucestershire, west England, where she was recovering.
Lily thanked all of her fans via social networking site twitter for their messages, saying they were helping her through her current ordeals.
She wrote: "I'm still very sick but the messages are helping me to be stronger. Thank you x x (sic)"
Her recent baby loss is not the first time Lily has had to deal with miscarriage - she suffered the same ordeal with former partner Ed Simmons in 2007.
Speaking about her feelings about the miscarriage last year, Lily claimed it has "changed" her and led her to repress her emotions.
She said: "I didn't even start beginning to deal with it until the baby's due date. Then it hit me like a house collapsing.
"The week before the due date, all I wanted to do was talk about my baby but I also felt I shouldn't. I was working non-stop and I had all this inside my head. I still get sad. I still think. I don't mark what would have been my baby's birth but it's always there. It changed a lot."
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