More details have emerged about Lindsay Lohan's downward spiral leading up to her checking into rehab last week. "She was a mess," a source says of the actress's behavior at a Golden Globes afterparty at the Beverly Wilshire Hotel. "She was stumbling and slurring: her friends had to take care of her." The Globes night was reportedly the last straw for Lohan. "She's been out of control," says a friend of the star. "She was doing tons of pills, drinking every night." Though the Bobby actress has repeatedly denied having a problem, a source says, "She was going out every night till 5 a.m., acting crazy. Going to AA meetings wasn't doing anything for her. She was still drinking."source