Angelina Jolie and Brad Pitt

Actress Angelina Jolie has been suffering from a form of diabetes that hits pregnant women, according to reports.

Jolie, who is expecting twins, has reportedly contracted gestational diabetes.

"She has gestational diabetes," The Sun quoted a source, as saying.

"She found out about a month ago. She's been seeing a nutritionist about it frequently," the source added.

The actress is said to be nauseous and her legs are so swollen that she has to wear bigger shoes.