QUIZ BY STEPHANIE THURROTT Yet again, you forgot to lift with your knees. FREAK OUT OR CHILL OUT? 42 FA L L 2017 PHOTO BY GLOW IMAGES Ow! Your back! Should you reach for an ice pack or get medical attention? Just about everyone deals with back pain from time to time, whether it's feeling a twinge with a twist or overdoing it with a lift. But how do you distinguish pain that will ease on its own from pain that requires a doctor? Some symptoms are signs that you might need treatment, says Nathan Wei, MD, a fellow of the American College of Physicians and of the American College of Rheumatology. He helps us assess back pain scenarios.