All symptoms of the “helicopter hunch.”For me, I had about 3,000 helo hours, of which 1,000-ish was wearing night vision goggles. Between the survival vest pulling me forward for hours, the torque on my neck from nvgs and helmet, and the vibration itself, I’ve got multiple discs with diagnosed arthritis in my back and neck. Regardless of your fitness level, military aviation is not easy on your back.