The 23-year-old broke her silence on her lupus diagnosis during an interview with Billboard magazine for their Oct. 17 issue, and also revealed that she went through chemotherapy.
"I was diagnosed with lupus, and I've been through chemotherapy. That's what my break was really about. I could've had a stroke," Gomez tells the magazine of her time spent out of the spotlight, which caused a flurry of speculation as to what was keeping her away.
"I wanted so badly to say, 'You guys have no idea. I'm in chemotherapy. You're assholes.' I locked myself away until I was confident and comfortable again," she recalled.