A hyperkyphosis (a large back to front spine bend) can be associated with a scoliosis and vise-versa. Ehlers Danlos Syndrome can have scoliosis and hyperkyphosis related to it. Scoliosis is measured by the Cobb method and a curve greater than 10 degrees is defined as a scoliosis. When you have EDS and become involved in an auto accident, you are more susceptible to injury due to your hypermobility from EDS but it would be unusual to have an increase in your kyphosis just from the auto accident unless you had vertebral fractures. It would be unusual to have CSF leaks spontaneously. See these links:
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.