You are unwittingly just promoting yet another form of back pain snake oil and there is already plenty. If I had fallen into the idea that my back pain was “just in my head” I would have gotten no where. I encourage anyone suffering to get an MRI as early as possible so at least you know what is wrong. Doctors and chiropractors will regularly misdiagnose you. There are lots of ways a back can go bad and everyone has their pet advice which probably doesn’t apply to you.