You have developed some temporary pain with what is called a Valsalva maneuver. This occurs when you have a bowel movement. You have to increase thoracic pressure (chest) which in turn increases intraabdominal pressure and finally this increases pressure in the lumbar spinal canal. This increased spinal canal pressure will aggravate previously irritated structures like a nerve root. If the pain is not impairing, I would try to ignore it.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
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.