Angelina Jolie and Brad Pitt’s twin babies have rarely been seen out in public since birth, and Life & Style thinks they now know why. According to sources, Angelina has been hiding her twins ever since discovering that both Knox and Vivienne were suffering from serious digestive problems.

Several months ago, Knox began throwing up after almost every meal, and Vivienne was diagnosed as being allergic to just about everything under the sun.

The defective babies will reportedly be released from house arrest after they are able to properly digest themselves.