As if LeAnn Rimes didn't have her hands full already following a fiery string of Twitter comments from Brandi Glanville which questioned Rimes' parenting skills, the 'Borrowed' singer now has a lot of explaining to do after an interview between her husband's ex-wife and Us Weekly. In the detailed story, 'The Real Housewives of Beverly Hills' star makes many bold claims, including that Rimes is 'unstable' and is battling a toxic eating disorder.

"LeAnn has a severe eating disorder," Glanville states in a revealing interview with the popular publication.

She went on to discuss an incident last month when her son Mason, 9, allegedly ingested one of Rimes' 'laxatives,' thinking that the pill was one of his stepmother's 'candies.' Apparently, the Cibrian boy became extremely ill following the supposed accident.

"She has [a laxative] in every purse. Mason found one on the floor and thought it was a Skittle!" Glanville told the source. "They don't keep sugar in the house. He thought he finally found candy! He gets extremely sick, and that freaks me the f--k out."

The model and mother of two also addressed her need to use Twitter as a tool to communicate with her ex-husband, Eddie Cibrian, as well as his country music superstar wife. "I don't have communication with [Cibrian and Rimes] because I don't get responses when I reach out," Glanville claims.

She added, "I can't get through to either one of them. They won't answer. And then after all the Twitter stuff, I get this long-winded email from Eddie -- finally, after months -- saying I need to stop talking about his wife to make myself relevant. Nothing to do with the children. Nothing to do with answering the questions I have. I see this ending badly. I see someone getting hurt, and, if it's my children, I will lose my mind."

It remains to be seen how Rimes will react to the latest allegations made by Glanville, but the country superstar will no doubt try to minimize the emotional effects of having her supposed dirty laundry aired publicly following a stint in rehab to deal with 'stress and anxiety' in her life.

“I’m happy and healthy,” Rimes revealed following her 30-day treatment program. “I just want to be happier and healthier more consistently. I don’t want to wake up and not truly be enjoying my life and these amazing things around me.”