Back in 2006, Russell Watson had the world at his feet. He'd sold seven million records, won two classical Brits and sung for the Queen, the Pope and President Bush.
But the I'm A Celebrity... Get Me Out Of Here star's near-perfect world was shattered when he began to suffer agonising headaches. "I was getting excruciating headaches and my left eye swelled so much it looked like I'd gone a couple of rounds with Mike Tyson," he previously told The Mirror. "The pain on the bridge of my left nostril felt like someone had stuck a knife in it." Doctors wrote it off as stress, but when Russell, 53, flew to Los Angeles to record a new album and realised he couldn't see the ball during a game of tennis, he booked in to see a neurologist who
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