Singer Robbie Williams has revealed that he is suffering from a mystery illness which struck him down four years ago.
The recently married singer did not give details of his illness, but said he wrongly thought he was suffering from depression, reports news.com.au.
"I thought I was lethargic and depressed as a person. I thought that was my make-up," he said in an interview to a radio station.
"I found out a few months ago that I'd been ill, completely by mistake, and I don’t want to go into the whys and wherefores but what I had made you lethargic and made you depressed and I’d had it for years and not known and I'm on treatment for it. It’s changed my life," he added.