By Alexis Tereszcuk – Radar Senior Reporter 
 
 Demi Moore had a seizure Monday night before she was rushed to the hospital and is being treated for anorexia, among other substance abuse issues, Radaronline.com has exclusively learned. 
 
 The 49-year-old Ghost star has become frighteningly thin since her split with husband Ashton Kutcher, and a source close to the actress described what happened to her. 
 
 PHOTOS: Demi Moore Scary Skinny 
 
 “She collapsed after having an epileptic seizure,” the source said about the frightening medical emergency. 
 
 Her dramatic weight loss has caused much speculation about her health and the source confirmed that this is one of the issues she is seeking treatment for. 
 
 “Demi is in getting treated for anorexia, as well as other issues that caused her seizure,” the source said. 
 
 PHOTOS: Demi Moore Looks Stick Thin And Somber At Nail Salon 
 
 “She has not taken care of her health at all lately and has lost a ton of weight.” 
 
 The actress is reportedly seeking help for substance abuse as well. 
 
 PHOTOS: Demi Moore Looks Frightening Thin On Red Carpet 
 
 Demi and Ashton’s six year marriage ended in 2011 after Star magazine‘s bombshell report that Ashton cheated on Demi with Sara Leal the weekend of their wedding anniversary. 
 
 She announced that she was separating from him but has yet to file divorce papers. 
 
 Demi’s rep told RadarOnline.com: “We have no information beyond our statement. Thank you for your email and understanding during this time. We appreciate you contacting us.” 
 
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 Demi Moore was rushed to a hospital Monday night after paramedics spent a half hour at her home. 
 
 Demi Moore’s descent from red carpet to rehab followed a scary seizure-like crisis reportedly brought on by a decidedly downmarket party drug. 
 
 She was “shaking�? and otherwise “acting like she was suffering from a seizure,�? a source told E! News. 
 
 The raven-haired beauty, who handlers revealed is now seeking help for stress and “exhaustion,�? was doing “whip-its,�? TMZ.com reported online. 
 
 PHOTOS: CELEBS WHO'VE GONE TO REHAB 
 
 The gaseous canisters of nitrous oxide, inhaled from whipped cream dispensers, send users into a state of other-worldliness. 
 
 Friends have watched with increasing worry the 49-year-old “Ghost�? star’s downward spiral — and stunning weight loss that has left her looking frail and gaunt. 
 
 People.com reports that a battle with prescription drug use was among the reasons her marriage to 33-year-old actor Ashton Kutcher collapsed. 
 
 “It was a sticking point for Ashton,�? a source told the mag. “He wanted her to take care of herself and get a hold of things, and she wouldn’t.�? 
 
 “Her family and friends have been really worried,�? the source said of Moore, whose first marriage to Bruce Willis, the father of her three daughters, also ended in divorce. 
 
 “Demi is a mess,�? a friend told People.com. 
 
 “Really, it was over the last year her friends saw a change�? another source said. “She wasn’t sleeping as well, didn’t seem to be eating and looked really gaunt.�? 
 
 It all came crashing down for the child of two alcoholics Monday night, when paramedics rushed to Moore’s Beverly Hills mansion at 10:49 p.m. and whisked her to a nearby hospital. 
 
 Eldest daughter Rumer Willis, 23, rushed to Moore’s side and was photographed looking visibly distraught as she smoked and spoke on a cell phone outside the hospital. 
 
 Moore’s publicist declined to comment on the reports of substance abuse. 
 
 This is Moore’s second-known stint in rehab. She sought help during her Brat Pack heyday after director Joel Schumacher threatened to cut her from the seminal coming-of-age flick “St. Elmo’s Fire,�? People reported. 
 
 “I remember she had a substance abuse problem. That was in the ’80s. But she was beautiful and charming and ragingly ambitious,�? Michael Levine, Moore’s publicist at the time, told The News Wednesday. 
 
 “I think the issues of addiction are very complicated matters. You never ever recover fully. 
 
 You’re always recovering,�? Levine said. “Stress also exacerbates issues in people’s lives.�? 
 
 With her old demons apparently resurfacing, Moore has dropped out of her most recent film project, the Linda Lovelace biopic “Lovelace.�? 
 
 She was set to play feminist icon Gloria Steinem in a small-but-critical role filming next week, sources said. 
 
 “We can advise she is no longer doing the movie,�? publicist Carrie Gordon told The News. 
 
 “We’re sad. Surprised isn’t the word. We’re sad and feel for her at this time. She’s got our utmost love and support,�? Heidi Jo Markel, a “Lovelace�? producer, told The News. 
 
 ndillon@nydailynews.com
– You think you're ready for 2012 to be over? Well, these dozen celebrities rounded up by the Huffington Post are probably even happier to wave goodbye to this year: Demi Moore: She kicked off 2012 by inhaling too many "whip-its" and having a seizure; her year went on to include a rift with her daughters, Ashton Kutcher finally filing for divorce (after getting together with someone much younger than Demi), and Demi getting dumped again. Kris Humphries: As if the whole Kim Kardashian fiasco wasn't enough, Humphries also had herpes allegations to deal with, not to mention another apparently crazy ex. Amanda Bynes: Enough said. Lindsay Lohan: Do we really need to explain? Lance Armstrong: He lost his Tour de France titles and a whole bunch of other stuff, got sued, and the icing on the cake: Sports Illustrated named him the Anti-Sportsman of the Year. Ouch. Click for the complete list.