Celine Dion says ‘I’m back’ after Stiff Person Syndrome struggles

Getty ImagesThe singer made a rare appearance at the Grammy Awards earlier this yearAs the sun sets behind the mountains in an exclusive neighbourhood 30 minutes from the Las Vegas strip, I can hear a recognisable voice singing behind a closed door.”Is that Celine?” I ask.Her security man guarding the hotel suite nods.I am about to interview a musical megastar, and it sounds like she is in a cheerful mood.But the iconic voice I can hear casually singing away is one that fans feared they might never hear again.”I’ve been dealing with problems with my health for a long time,” she shared in…