Robbie Williams has opened up about his diagnosis and says that will explain any odd behaviour when you see him perform. The former Take That star was diagnosed with Attention Deficit Hyperactivity Disorder several years ago and says he became addicted to the drugs used to treat it.
Taking to Instagram on Friday, Robbie said: "I got Diagnosed with ADHD a long time ago. They gave me Adderall …I'm an addict.
"Adderall is basically speed. This didn't work out well. But boy could I concentrate. It was ALL I could do. Really, really, really concentrate. For hours, days. On what though I have no idea.
