Her agent Barry Tomes has revealed that he wasn't sure about her entering the house, over fears for her mental health. Instead, he ensured that she is given anti-depressants everyday.
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Barry told the Mirror that Dee, 43, didn't actual want to participate in the reality show first of all, and only made her decision to enter right at the last minute.
He said: "She didn't want to do it all and I didn't think she would do it. I didn't think she was well enough because the depression is serious.
"We can be laughing and joking – for example recently we were in the studio recording the song and having an amazing day with the band and that night she was booked to do BBC news night.
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"It was 3 o'clock we're going to have some dinner and then we've off to London BAM, depression kicked in and we had to cancel it. A live BBC show, you want to be on it but we has to cancel it because the depression just kicked in. You know why? Because she didn't take her medication [sic]."
Barry insisted that while Dee is no longer claiming benefits, when they first started working together she legitimately needed them. Together, they have eased her into work and got her off of them.
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Dee may seem like she is enjoying herself in the house but Barry said that he's already told the Big Brother bosses that he will remove her at the first bad sign.
He said: "My first impression is she's loving it. I also told them that if I see a sign that isn't a good sign, I will be ringing them and getting them to pull her out."