Britney Spears believes that she is suffering from postnatal depression and doesn't need to be treated for an addiction to drugs or alcohol. The singer has been at the Promises rehabilitation clinic in Malibu for two weeks, and is furious with her friends and family who apparently forced her into seeking treatment. The 25-year-old finally entered the centre on 21st February following several months of hard partying and two previous but brief stints in rehab. Doctors at the clinic have been surprised at the state of her health. One source said, "They're in shock at what bad shape she's in." | 
