Victoria Beckham's friends are concerned that her perfectionist tendencies could be negatively impacting her health.
The singer-turned-fashion designer, who shed a lot of weight in the late Nineties and has never gained it back, was said to be suffering from fatigue while taking a Christmas and New Year break with hubby David Beckham.
"Victoria is feeling rather low and tired at the moment," the Daily Express quoted a source close to the couple as saying.
"David fears her blood sugar is low constantly because she eats so little and it also leads to her waking up three or four times in the night, which means she never has a perfect night's sleep.
"She claims her sleeping problems and fatigue are often due to jet lag but David feels she needs to eat a more rounded diet and 'stuff in some carbs'."
"Victoria is doing well in the fashion world but she's a perfectionist and as soon as she achieves something she needs to achieve the next thing so her sense of happiness and achievement doesn't last very long," added the source.
"She needs to feel close to her husband and three sons to give her a sense of happiness but lately she has been so busy and sleep-deprived she's not been feeling totally that way," the source added.