Long story short, I'm 45, 1 year out from a double lumbar disk removal & replacement (fusion).
I just started a 3-month PT program called Pure Healthy Back. So I'm lifting weights for the first time in a decade. Three weeks in, and the soreness from the PT in my upper back and shoulders (one killer kink that just won't subside) is so bad that I'm basically semi-disabled with the amount of laying around I do.
In another thread I saw someone mention their family said it was "all" psychosomatic. I'm a psychology PhD (organizational) and most things fall on a physical-to-psychosomatic spectrum. Most chronic is a mix of the two.
There is an awesome book called Back in Control (Amazon) that explains it. The book is strongly influenced by Dr. Schubiner's Unlearn Your Pain Program (workbook also on Amazon).
I strongly recommend both for all types of pain, not just back pain.
What does everybody else think? Does your pain have both physical causes and psychological causes? (e.g. stressors)
My 2 cents is that we have a better chance of getting better if we treat both the psychological and the physical.