Angelina Jolie has developed a form of diabetes which affects mothers to be, according to published reports.The sexy Hollywood actress is reportedly suffering from such painful swelling in her legs and feet that she has to wear shoes half a size bigger than usual. Star Magazine claims the 32-year-old is finding her second pregnancy "difficult". A source tells the publication, "Angie has gestational diabetes. She found out about a month ago and has been trying to keep it under wraps."She’s sick and irritable and feels heavy and weak. She’s been seeing a nutritionist about it." Gestational diabetes develops in a small proportion of pregnant women and results in high blood-sugar levels. It is usually treated with diet and exercise and is reversible but sufferers run the risk of developing Type 2 diabetes as a consequence.Jolie - who is expecting her second biological child with partner Brad Pitt already has a daughter, Shiloh, and three adopted kids, Maddox, Pax Thien and Zahara.