You may have subluxations and not even know it. Like the early stages of tooth decay, subluxations can be present long before any symptoms emerge. Only chiropractors have the specific training to detect subluxation. Using special techniques like x-ray, surface electromyography, thermal scanning, and postural analysis, chiropractors can determine whether or not subluxations are present. Some extreme warning signs of long-term subluxation include headaches, back pain, neck stiffness, pain in your shoulders, arms or legs, numbness in your hands or feet, fatigue, or nervousness