Angelina Jolie post-natal depression?

Is Angelina Jolie struggling with the newborn twins?

Angelina Jolie is so tired and stressed after concerns over her newborn twins' health, she could be bordering on post-natal depression, if US reports are to be believed.

The mum-of-six has been holed up in Château Miraval in Provence since the birth of Vivienne Marcheline and Knox Leon, and hasn't been seen, except for on a family photo shoot, since last month.

The American press have their own suggestions about possible problems the Kung Fu Panda star might be experiencing.

The National Enquirer has reported that the babies are suffering with colic, a common condition that causes repeated crying episodes, while insiders told InTouch Weekly that their constant state of distress is sending Angelina in to 'depression mode', prompting speculation that she may be suffering with post-natal depression.

According to the source, Angelina has been trying to control her emotions around her four other children, Maddox, 7, Pax, 4, Zahara, 3, and Shiloh, 2, but 'her mood swings have been hard on the entire family'.

The source added: 'She has been staying in bed most of the time, all she does is sleep. She has little energy and has to force herself to remember to eat because she is still breastfeeding.

'She cries at the drop of a hat and laughs at inappropriate times. Everyone is hoping she will talk to someone about how she is feeling.'

The source continued to say that Angelina feels Brad has it easy, adding: 'He had the kids without the pain of birth and he can just jet off whenever he feels like it.'

Brad did, in fact, jet off to Italy with sons Pax and Maddox to attend the Venice Film Festival last week, but we can't help but think that he might actually have been doing Angelina a favour by taking some of the pressure off at home.

Also, what woman who's just given birth to twins isn't going to be tired out, especially when there are four other children to look after? We're sure tough-cookie Angelina is doing just fine…

ANGELINA JOLIE PHOTOS