Sad news, RIP Nikki Grahame.
I wonder how much BB itself was to blame. They took someone who was obviously a bit unhinged and played her for laughs. Endemol must have thought they'd struck gold when Nikki shouted "who is she? who is she?" and walked around in a winter coat in mid-summer complaining it was cold. That suggests anorexia to me. All the signs were there. Then they had that "Princess Nikki" series where they just put her in situations where they knew she'd kick-off, for laughs. She'd probably have kicked the anorexia and been better off if she never went on Big Brother in the first place.