Miley Cyrus is speaking out against rumors it was a drug overdose that put her in the hospital, forcing her to cancel several shows. "I'm the poster child for good health," she said in London on Tuesday. "You have no idea how ready I am. There is nothing I would rather not do than lay in a bed for two weeks. It was the most miserable two weeks of my life." Cyrus cleared the air amid rumors as to what really sent her to the hospital. "I didn't have a drug overdose. I took some sh*tty antibiotics that a doctor gave me for a sinus infection and I had a reaction," Cyrus told the press. She said she's now feeling "better than ever," and that the experience taught her a lot about taking care of herself. "I'm probably the only one on this tour who doesn't drink or smoke before a show, as I take this really seriously," Cyrus said.