"Just out of the hospital," husband Dean McDermott wrote on Twitter on Monday. "After a battery of tests, no conclusive answers. She still feels terrible. Hope it passes soon. She's in a lot of pain."
Spelling, 36, has been chronicling her illness, which is shared by her husband and children, and which she called "The McDermott Family Bug" in a Tweet, for days.
"Thnx 4 all the well wishes! [Dean] & I R at the ER," she Tweeted the afternoon of Sept. 20. "They R givn him IV. He's very dehydrated. Running tests.will keep our tweeps updated!"
On Tuesday, Beverly Hills 901210 and Tori & Dean: Home Sweet Hollywood TV star went to a stomach specialist to see what the cause of her abdominal pain was.
"At stomach specialist although since it hit Liam last night 2 I'm sure he just had a stomach flu," she Tweeted. "Praying Stella doesn't get it!"
Daughter Stella, who was born last June, began throwing up on Thursday. The ailment was so bad Spelling had to pull out of the West Coast Liberty Awards Tuesday night.
"She feels terrible about it," her spokeswoman told the Post.
PeopleTV Archive: Tori Spelling Enjoying Every Mommy Moment