Your information you provide is symptom complaints but there is really no hard data to indicate what problems exist. “Straightening” of the cervical spine generally does not result from muscle spasm but from degenerative disc disease. Left arm numbness could occur from “pinched nerves” in the neck, nerve compression in the shoulder, the arm and even possible metabolic problems (many causes). It sounds like you need a spine expert to determine your disorder, explain the problems to you and come up with a treatment plan that gives you relief.
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.