After blindsiding Brad Pitt by filing for divorce, Angelina Jolie is more stressed than ever, causing her weight to plummet.

Sources reveal exclusively to Life & Style that the actress is crumbling under the pressure of her very public breakup and now weighs just 90 pounds.

MORE: Sign Up For Our Newsletter to Keep Up to Date On All Life & Style Exclusives!

"Friends are concerned that the divorce is pushing her over the edge both emotionally and physically,” a source says. "She’s living on herbal tea and a few grains. It’s like she’s totally given up on herself.”

ls cover 1642

Angelina is currently holed up in a Malibu rental home with her six kids, Maddox, 15, Pax, 12, Zahara, 11, Shiloh, 10, and eight-year-old twins Knox and Vivienne, but she's barely keeping it together and has lost eight pounds in just one week.

MORE: Angelina Jolie and Brad Pitt's Divorce — Here's What the Key Players Have Said So Far

"She’s so frail. Friends are urging her to eat, and to get help,” adds the insider. “But she just isn’t coping well with the divorce.”

For more on Brangelina, pick up the latest issue of Life & Style, on newsstands now. And take a look back at the couple's cutest moments in the gallery below!