"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," Selena explained to Billboard magazine.
Selena's absence from the public eye lead to speculation that she had entered rehab, much to the frustration of the star. "I wanted so badly to say, 'You guys have no idea. I'm in chemotherapy. You're a**holes'," Selena said. "I locked myself away until I was confident and comfortable again."