Sources close to the singer told Popdust that Gomez has had many flare-ups recently, leading to joint pain, headaches, fatigue and swelling.
"Selena has been going full throttle the past few years and her Lupus is really catching up with her right now," a source told Popdust. "She knows that she needs to take some time to address the disease and look after herself better if she wants to live a full and healthy life."
BOSTON, MA - DECEMBER 14: Selena Gomez performs onstage during KISS 108s Jingle Ball 2013, at TD Garden on December 14, 2013 in Boston, MA. (Photo by Mike Coppola/Getty Images)
LOS ANGELES, CA - JUNE 20: Singer Seal arrives at the Leica Store Los Angeles grand opening at Leica on June 20, 2013 in Los Angeles, California. (Photo by Gregg DeGuire/WireImage)
US singer Lady Gaga poses backstage at Capital FM's Jingle Bell Ball at the O2 Arena in London on Saturday, Dec 7, 2013. (Photo by Jon Furniss Photography/Invision/AP)
Toni Braxton arrives at The Grove's 11th Annual Christmas Tree Lighting Spectacular Presented By Citi at The Grove on November 17, 2013 in Los Angeles, California. (Photo by Alexandra Wyman/Invision for Caruso Affiliated/AP Images)
BEVERLY HILLS, CA - DECEMBER 06: Nick Cannon arrives at the March Of Dimes' Celebration Of Babies Hollywood Luncheon at Beverly Hills Hotel on December 6, 2013 in Beverly Hills, California. (Photo by Steve Granitz/WireImage)
SANTA MARIA, CA - MARCH 30: Michael Jackson waves as he arrives at the Santa Maria Superior Court during the fifth week of his trial March 30, 2005 in Santa Maria, California. Jackson is charged in a 10-count indictment with molesting a boy, plying him with liquor and conspiring to commit child abduction, false imprisonment and extortion. (Photo by Carlo Allegri/Getty Images)