Demi Lovato has revealed that she sometimes suffers from survivors guilt after surviving a heroin and fentanyl overdose back in 2018.The singer’s comments came in a new interview as she reflected on DMX’s recent suspected overdose that has left him in a coma fighting for his life in hospital.The 50-year-old rapper, whose real name is Earl Simmons, is currently in the intensive care unit of White Plains Hospital in New York, where he was admitted on Friday (April 2) after going into cardiac