Lisa Vanderpump says she was 'in shock' after fainting during 'DWTS' practice

LOS ANGELES, April 8 (UPI) -- "The Real Housewives of Beverly Hills" star Lisa Vanderpump says she was "in shock" after fainting during practice for "Dancing with the Stars."

"I was exhausted and everything felt off. [My professional dance partner] Gleb [Savchenko] and I were rehearsing our cha cha and suddenly I just blacked out," Vanderpump, 52, blogged on People.com about falling ill late last week.

"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," she wrote. "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."