Starting in October 2013, Robin began to experience a series of physical ailments, varying in their severity and seemingly unconnected to one another. He had stomach cramps, indigestion, and constipation. He had trouble seeing; he had trouble urinating; he had trouble sleeping. The tremors in his left arm had returned, accompanied by the symptoms of cogwheel rigidity, where the limb would inexplicably stop itself at certain fixed points in its range of motion. His voice had diminished, his posture was stooped, and at times he simply seemed to freeze where he stood.
