Angelina Jolie was “shocked and worried” when she learned that her son had been in an e-bike accident. The 49-year-old actress has Maddox, 22, Pax, 20, Zahara, 19, Shiloh, 18, and 16-year-old twins Knox and Vivienne with her estranged husband Brad Pitt and an insider has claimed that her second child has been “very lucky” despite the circumstances, which saw him sustain a number of injuries Los Feliz Boulevard, Los Angeles. A source close to the ‘Maleficient’ star told People: “He’s uncomfortable and will need further treatments. Still, he was very lucky. It could have been much worse since he…