Hollywood actress Angelina Jolie is struggling with depression ever since the birth of her twins Vivienne and Knox two months ago.

Hollywood actress Angelina Jolie is struggling with depression ever since the birth of her twins Vivienne and Knox two months ago.

The actress is exhausted by the sleepless nights caused due to her twins' constant weeping and has called in doctors over concerns for her newborns' health, reports dailymail.co.uk.

According to the National Enquirer, the babies are said to be suffering from colic, a common but largely unexplained condition that causes repeated episodes of excessive and inconsolable crying.

Another magazine In Touch has stated that the babies' constant state of distress has caused Jolie to slip into 'depression mode', prompting fears she may be suffering post-natal depression.

"The 33-year-old has been trying to control her emotions around her older children Maddox, 7, Pax, 4, Zahara, 3, and Shiloh, 2, but her mood swings have been hard on the entire family," said a source. The source added: �She cries at the drop of a hat and laughs at inappropriate times.