The mum of five burst into tears as host Emma Willis read out the result.
As runner up Katie Hopkins hugged her, the former glamour model said she feared having a panic attack because she was so shocked about the result.
Runner up Katie Hopkins left the house to a chorus of boos, after third placed Calum Best, runner up Keith Chegwin and fifth placed Michelle Visage.
Before she left the house, Katie, 36, looked visbily shaken and had her head in her hands.
Taking big breaths, she stepped out of the doors and asked the crowd “why have I won?” before gingerly walking down the stairs.
Talking to host Emma Willis, Katie - who couldn't hold back her tears - said: “I don’t understand why...
“I went in with a medical problem, I’ve been on antibiotics and painkillers so I think I’ve been boring so I don’t know why I’m here.”
She also went on to say that she went into the house to find some loyal friends.
Was Katie P your winner? Let us know what you think.