That's not a bad guess for the later years of my pain. It actually began around L5 and felt like the upper arch of the ilium was another source. It is still tender there although I have very little lower back pain now.
Six months later my neck joined in the fun at about C5 and C6 as near as I can tell. That still gives me occasional problems but at least it isn't 24/7/365 like it was for the first 24 years.
But it all began several years before I was forced out of work. Forced out by that very pain.
One of the most fascinating cases I worked on was a young man, age 17 who had severe scoliosis and was scheduled for surgery. His body frame looked as though he had just come from a German concentration camp as he appeared severely malnourished and had very little muscle mass, even though he was in a healthy environment with excellent parents.
By removing the emotional trauma attached to a memory of his parents getting divorced when he was six years old, the spinal muscles relaxed as they no longer needed to be tight to block the emotional reception. This relaxed the entire spine allowing the curvature to be released. The change in his total health was astonishing. No surgery was required.
It appears that the masculine aspect of consciousness utilizes the spinal muscles as a defense system while the feminine aspect utilizes the cerebellum. This is based upon my observations of responses resulting from emotional trauma memory stimulation over many years. Since both genders have both aspects of consciousness, it is a matter of which aspect is dominate in the individual and does not necessarily depend upon gender.
Please note, I am not a chiropractor and do not do physical spinal adjustments. The work is done entirely in the memory field, several feet from the person's body. I do not touch the person I am working with.
Using the above methods, PTSD can be removed in minutes, even if the event took place over fifty years ago. I've done many demonstrations in front of groups where I ask a volunteer from the group to recall the most emotionally traumatic event that ever happened to them in their life. It takes less than a minute for me to remove the emotion attached to the memory after which it is not even available for recall. The removal is permanent. It's like doing surgery on the soul.