Some return of pain is not abnormal after a microdiscectomy. The nerve which has been compressed for a period will swell and cause some return of symptoms. You pain level is acceptable and should not be a worry at this point.
It is true that reherniations can occur in this initial period but symptoms would be expected to be much more severe (in the area of 5-8 on a VAS scale).
You sound like you are on tract and doing well. Continue to walk and most likely, you will be fine.
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.