Being part of a family that has endured cancer in all its forms, I know the waiting game is the worst of all. The not knowing. The "what if's" and the "how long's". In short, Sarah Harding's going to the wringer right bout now. And the story being leaked to the press is bound to help.

The Girls Aloud singer has reportedly undergone tests after having three potentially cancerous moles removed last Wednesday - just two days before the group announced their greatest hits album Ten and comeback tour - at a London Hospital and is now awaiting the results this week.

Although the blonde is "stressing" over the situation she has been reassured that things are looking very hopeful and that doctors believed they have removed the blemishes in time and do not think she will need any further treatment.

A source told The Sun newspaper: "This is an incredibly stressful time for her. It's early days and the doctors are very positive - but the word 'cancer' is terrifying to hear and Sarah is naturally stressing about it."

Luckily for the 30-year-old she's been able to rely on the support of her Girls Aloud bandmates - Cheryl Cole, Kimberley Walsh, Nicola Roberts and apparently even Nadine Coyle.

The four girls have told Sarah not to worry too much about the tests and instead try and focus on their tour. Which could sound self serving, but it's not really.

The source added: "The girls are completely behind her. Some of the fans have suggested she hasn't been enthusiastic about the tour, but the girls have told her not to stress because she'll only run herself down and make herself sick."