Still Sober? Kim Richards Rushed To Emergency Room ‘Doubled Over In Pain,’ Concerned Sister Kyle Says

Kim Richards, on Tuesday night's edition of The Real Housewives of Beverly Hills, wound up in the emergency room after her sobriety was questioned once again.

While viewers didn't find out what was wrong with the 50-year-old reality star (who has previously been in rehab for alcoholism) she insisted on her Bravo blog that she was suffering from bronchitis and pneumonia before the infamous poker party thrown by Eileen Davidson and her husband Vince Van Patten.

During the party scenes that aired on last week's episode, Kim admitted to sister Kyle Richards that she had taken "something" for pain, which bothered Kyle so much that the party ended with a fight between the sisters.

And as Tuesday's episode picked up, their co-star Lisa Rinna -- who had previously asked Kim if she was drinking, which Kim denied -- sighed, "When sisters collide, I don't know what the f*ck to do."

During Rinna and Kyle's ride home from the party, Kyle, 46, revealed her concern about how Kim was dealing with the illness of her ex-husband, Monty Brinson.

As RadarOnline.com told you first, Brinson has been living with Kim as he battles cancer that began in his lungs and then spread to his brain and spine.

Rinna warned Kyle, "I know your sister is a sober person, but she did not seem sober to me."

The former Days of Our Lives star, who is married to L.A. Law star Harry Hamlin, then dropped a bomb of her own in confessional.

"I know what Kyle is going through because I saw Harry watch both of his brothers drop dead of alcoholism within six months of each other," Rinna said. "Unless anyone wants help, you can't help them."

Later, a frantic Kyle revealed to husband Mauricio Umansky, "Kim is in the hospital," but she didn't know why, only that, "She was in a lot of pain and Monty took her to Cedars-Sinai."

While Kyle admitted sibling relationships are often complicated, she added, "I think with Kim and me, there's a whole other dynamic because of her sobriety and my not knowing how to handle it always."

Kyle told her husband she thought helping cancer-stricken Brinson was "too much" for Kim.

In a later scene, pal Yolanda Foster visited Kyle and commented, "You have so many dogs. And they're all so friendly."

The moment was unintentionally funny because as RadarOnline.com readers know, the Richards sisters have been locked in a bitter feud after Kim's pit bull viciously attacked Kyle's daughter, Alexia Umansky.

But on Tuesday's show, after Foster pet Kyle's tame dogs, she learned what was going on with Kim.

"She was doubled over in pain and ended up in the emergency room," Kyle said.

Yolanda had sympathy for Kim, noting, "With her daughter getting married, her other daughter moving out, nursing Monty every day through what he's going through, it is so hard. It's a lot of pressure for anybody."

At the end of the episode, Rinna threw a jewelry sale party and Kyle was again peppered with questions about Kim's hospitalization.

Kyle told the guests, who included Charlie Sheen's ex-wife Denise Richards and stylist Jennifer Rade, that she still didn't know what was wrong.

"Right now they are doing all these tests," she said. "I went to the hospital and waited an hour and a half today and she never came back to the room.

Bella, who was arrested for DUI last year, showed her Hollywood pedigree when she informed her mother she was going to an NYC art show with "Tallulah and Demi," as in Demi Moore and her daughter Tallulah Willis.

Foster thought it sounded like fun, but the protective mom, who was bitterly disappointed about her daughter getting into DUI trouble, reminded Bella of her curfew.