Photo:Rodin Eckenroth/FilmMagic, Tori Spelling/Instagram

Tori Spelling

Rodin Eckenroth/FilmMagic, Tori Spelling/Instagram

Tori Spellinghas been laid up in the hospital and is missing her kids something awful.

On Sunday, theBeverly Hills, 90210alum, 50, revealed that she has been in the hospital since Thursday in a snap of her wristband featuring the date of admission and an IV tube.

“4th day here and I’m missing my kiddos so much…” Spelling wrote over the Instagram Story. “Grateful and so proud of my strong, brave, resilient, and kind to the core children who remain positive no matter what comes our way.”

Tori Spelling/instagram

Tori Spelling

Spelling’s rep did not immediately respond to PEOPLE’s request for comment as to why she is in the hospital.

“Here we are again at Urgent Care. We’ve all been on this continual spiral of sickness for months. Sick. Get better. To get sick again. Used to think… well that’s what happens when you have young kids in school. They just continually bring sicknesses home,” her caption began.

“But, when it gets to the point where they are at home sick more than being in school we had to reassess what was going on,” she continued. “Kids will be kids but when you have your youngest (10 and 6) so sick they are sleeping all day and say they feel dizzy even standing I knew something bigger was going on.”

“Enter Mold inspection!” Spelling wrote, explaining the inspectors “discovered extreme mold in our home” and that “the pieces all started to fall into place.”

“You just keep getting sick, one infection after another. Respiratory infections. Extreme allergy like symptoms too and like my poor Finn skin rashes as well,” she said of her kids’ symptoms.

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Spelling shares sonsBeau Dean, 6,Finn Davey, 10, andLiam Aaron, 16, and daughtersHattie Margaret, 11, andStella, 15, with exDean McDermott, from whom she recentlyseparatedafter 18 years together.

After McDermottannounced the splitin a since-deleted May Instagram post, a source later confirmed to PEOPLE that Spelling wasstaying with a friend. Another insider shared that the actress has been leaning on her formerly-estranged motherCandyfor support during the transition.

“[Candy] has given Tori assurances that her and her kids would absolutely be taken care of and there should be no financial insecurity moving forward,” the source told PEOPLE.

source: people.com