Car crashes can be a horrifying experience no matter how serious it may be. After your auto accident you may experience trauma, emotional disorientation, and physical injury that you may not notice immediately. Whiplash is one of the more common injuries. Symptoms include neck pain, shoulder pain, upper and lower back pain as well as stiffness in your muscle due to subluxation, which is when a vertebrae or joint becomes unaligned or moves out of its normal position.