Lisa Vanderpump’s dancing may be questionable, but you can’t say she isn’t a hard worker. Over the weekend, Lisa fainted during one of her and partner Gleb Savchenko’s Dancing With the Stars 2013 rehearsals. Now, the Real Housewives of Beverly Hills star is opening up about what caused the scary accident.

“Gleb and I were rehearsing our cha cha and suddenly I just blacked out,” Lisa explained in her DWTS blog for People. “I was in shock when I woke up. I fainted only once before in my life. The doctor found that I had a viral infection with fever and swollen glands. And between trying to fight that and all of the stress on my body from running around, I ended up with low blood pressure and a rapid heart rate, which is why I fainted.”

Uh-oh! Sounds like Lisa is going to need a lot of rest and relaxation before stepping out onto the ballroom floor to do her Cha-Cha-Cha. As an avid DWTS fan knows, the Cha-Cha-Cha is high energy and full of enough kicks and flicks to make your head spin! We’re not sure how Lisa is going to pull this one off, but at least the reality star has the right attitude.

“I am still fighting the bug and feeling under the weather, but I am staying in the game as long as they say I can. And I will give it my best!,” she wrote. “The cha cha is a very difficult dance but this is a style of dance, which Gleb excels and I want to make him proud.”

You go, Lisa! We’ll be rooting for you.