The many faces of Britney: Troubled singer may have 'multiple personality disorder'

Since she started dating her English paparazzo boyfriend Adnan Ghalib last month, Britney often speaks in a British accent.

Sources claim the troubled singer, 26, is suffering from dissociative identity disorder, which leads the sufferers to take on various personalities to dissociate them from reality.

Those with the disorder take on different identities to help them cope under severe stress.

Friends of the singer said Britney has been showing different personalities, including "the British girl", "the weepy girl", "the diva" and "the incoherent girl".

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In recent days, Britney has been flaunting a ring on her engagement finger as sources claim she's "desperate" to marry her paparazzo boyfriend Adnan Ghalib.

The troubled star has put pressure on the British photographer to fast track his divorce, Mail Online has learned exclusively.

Britney showed off the sparkler during a 2am visit to the clothing store Kitson after requesting the store to open especially for a late night shopping spree.

Wearing a men's shirt, black tie and ripped fishnet stockings, Britney headed out for the early morning trip accompanied by her manager Sam Lufti.

Leaving the store, Britney spoke to the paparazzi in a British accent, saying: "Where is your driver when you need them?"

Britney had spent the earlier part of the evening enjoying a romantic date with Adnan - the couple went out for dinner at the Gaucho Grill in Studio City and then popped into Starbucks for an iced coffee.

It appears the new romance is already getting serious, with a source confirming earlier reports the Gimme More singer hopes to wed the recently separated Birmingham-born photographer.

"Britney is desperate to marry Adnan," a source tells Mail Online, adding that she recently dragged him down to Mexico under the mistaken assumption that it continues to issue quickie divorces. Sadly for Miss Spears, they were obliged to return with Mr Ghalib still married and the singer still waiting.

Britney wants him to be single as soon as possible," the source said.

Britney's relationship with Adnan, who launched an attack on former colleagues who got in the way of the couple's romantic night out, caused concern amongst her friends.

Britney's best friend and cousin Alli Sims has broken her silence and over her fears regarding the whirlwind relationship.

"I think he only has bad intentions," she says.

"He has given me a weird feeling and creeped me out. I wish he would just go away."

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Tables turned: Adnan Ghalib broke tables and chairs as he raged at fellow photographers who followed him and Britney into the Los Angeles restaurant The Gaucho Grill last night

Britney went out with Adnan in ripped fish nets and a pair of Christian Louboutin pumps

Worried Alli revealed she believes Britney is extremely vulnerable as a result of her fame.

"When you go through your whole life just listening to what everybody tells you to do, you get to the point where you're not used to having to pick out yourself what is really important," she added.

She's not the only one who feels negatively about Adnan – even his own friends and family have been spilling the beans, with one revealing that he used to run a strip club in California before deciding that photographing celebrities was a better money-spinner.

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Britney was photographed shopping for a pregnancy test with Adnan

The pop star's camp have denied she is expecting another child

It's also been claimed that Adnan staged the pictures from yesterday that apparently showed Britney buying a pregnancy test.

Her camp has denied she is expecting a third child and Britney told a pack of photographers she was purchasing the test for a "friend".

Her manager Sam said: "I don't even know what the hell that was. I don't know if they even bought one... I think it was probably for Chad."

When asked by a LA radio host if Britney wanted another child, Sam replied: "No, not at all."

Britney lost all visitation rights earlier this month after she refused to hand over Sean Preston, two, and one-year-old Jayden James in a bizarre custody-stand-off at her Malibu, California mansion.

Meanwhile, the Associated Press news agency have admitted they have started preparing Britney's obiturary following her recent behaviour.

AP entertainment editor Jesse Washington said: "We are not wishing it, but if Britney passed away, it's easily one of the biggest stories in a long time.

"I think one would agree that Britney seems at risk right now.

"Of course, we would never wish any type of misfortune on anybody and hope that we would never have to use it until 50 years from nowbut if something were to happen, we would have to be prepared."