Miley Cyrus denied rumors that her recent two-week hospitalization was due to a drug overdose during a press conference Tuesday . "I didn't have a drug overdose. I took some [expletive] antibiotics that a doctor gave me for a sinus infection and I had a reaction," Cyrus told reporters at the O2 arena in London. Cyrus cancelled several shows on her Bangerz tour after a severe illness left the Wrecking Ball singer bedridden for two weeks. She said she was devastated to cancel the shows, but now is feeling better than ever. "I'm the poster child for good health," said Cyrus. "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 added that she is probably the only one on the tour who doesn't smoke or drink before shows, because she takes her work seriously and wouldn't let herself perform in that state. The Bangerz tour resumed on May 6 in London. Cyrus tweeted that she is incredibly happy to be back on tour.