Millions of nerves travel throughout your frame to control the function and physiology of your body. Spinal joints that are misaligned or not moving properly can impact your health by irritating spinal nerves. When irritated, these nerves send a signal to your brain that something is wrong. Symptoms, including pain, are usually the result of these alarms. Nerves also send signals to your muscles to stabilize and protect the area. These other distress signals lead to feeling sore, stiff and fatigued.