First responders still in grip of Marathon’s horror ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page MARK LORENZ FOR THE BOSTON GLOBE Nicole Fluet McGerald (right) assisted at a race in Hampton, N.H., Oct. 6 in which colleague Amanda McCann ran. MARK LORENZ FOR THE BOSTON GLOBE McGerald was one of the first responders at the Boston marathon bombings. First responders often feel the full effects of post-traumatic stress disorder years after the traumatic event. MARK LORENZ FOR THE BOSTON GLOBE McGerald (center) sprung into action to help a marathoner in Hampton, N.H., on Oct. 6. After the bombings, McGerald, 31, was so distraught that she had to take a leave from her job as a physical therapist. COURTESY NICOLE MCGERALD McGerald hikes to help her cope with PTSD. Here, she held signs at the summit of Mount Washington this past weekend. At each summit, McGerald leaves a box containing a small American flag, a handmade Boston Strong ribbon, and a plastic-sealed message explaining that she was a first responder at the Boston Marathon and remains ready to help anyone who needs it. Lane Turner/Globe Staff Bill Dockham, a registered nurse who worked in the main medical tent after the bombings, has had panic attacks. Lane Turner/Globe Staff In the days after the bombings, Dockham couldn’t sleep and had trouble focusing. Since then, thunderstorms have made him jumpy, and taking the T, especially sitting near people with backpacks, has sparked fear. Suzanne Kreiter/Globe staff Christina Hernon, an emergency medicine doctor who was called to the Boston Marathon finish line to treat the wounded, has had trouble sleeping and difficulty concentrating.