By Stephanie Apstein Following a disqualification from her second consecutive race in Beijing, the 26-year-old is searching for answers to explain the unfathomable results, but says she’s “not scared to feel a little bit weighed down by some expectations anymore.” BEIJING — Mikaela Shiffrin trudged to the left side of the slalom course, yards from the scene of her latest disappointment, and collapsed. At the top of the mountain, at the bottom of her confidence, she held her head in her hands, and she thought about betrayal. That walk took her longer than her Olympic races. Two days ago, the wo…