Since age 11, Pacific Northwest Ballet soloist Steven Loch has struggled with obsessive compulsive disorder (OCD). "Dance saved my life," he says. "Performing allows me to process my experiences with mental illness through movement. The muscle memory distracts my brain and, for the most part, I'm able to leave my OCD in the wings."OCD is a disorder in which a person has uncontrollable, reoccurring thoughts (obsessions) and behaviors (compulsions) that they feel the urge to repeat over and over. Specialists generally divide OCD…