Yolanda Foster took to social media this week to update her fans about her health condition. The "Real Housewives of Beverly Hills" star was diagnosed with Lyme disease back in 2012 and, since then, has been very open about her condition, taking to Instagram to post pictures of the various treatments that she has tried in hopes of finding a cure for the debilitating disease.

On Wednesday, the mother of three took to the photo sharing up to share a new shot, which shows her getting an IV while sitting on a chair. The star is stylishly dressed in tan and white zebra print leggings, a white shirt, and a cream-colored scarf. She captioned the shot, "Exhausted but determined to uncover the mystery of chronic Lyme disease…#AnotherDayInTheOffice #SearchingForACure."

On Tuesday, Foster alluded to the rumors that she is faking her Lyme disease. She posted a selfie showing her lying in bed. She wrote, "People assume you aren't sick unless they see the sickness on your skin, like scars forming a map of all the ways you are hurting…#SadButTrue #InvisibleDisabilities."

Despite her ongoing fight with the disease, reports claim that Foster is making her way back to the Bravo show for its sixth season. According to RadarOnline, the star is going to confront some of the housewives in the upcoming season after they questioned her Lyme disease diagnosis.

"She was beyond hurt after finding out that some of the ladies were asking a lot of questions and even suggesting that she didn't have it," said a source to the website. The insider adds that Foster was particularly upset with Lisa Rinna and Kyle Richards for not speaking up in her defense. The source also said that Foster plans to have "heated words" with Taylor Armstrong, who is reportedly back for season 6, because Armstrong wasn't around during the height of her illness.

The insider added that Foster's health is improving and that she plans to raise awareness of Lyme disease in season 6 of "The Real Housewives of Beverly Hills."