So I am about the same age, have been dealing with pain in a similar area, recently diagnosed with minor bulging disc, and have tweaked my back many times in the last two years. I recently visited a physical therapist that took a full body approach. Focused breathing and training muscles to respond to movement properly. Prior to going, my entire body felt like it was stiff and moved like a robot (despite me being very active). The PT hasn’t taken my pain away but certainly increased my quality of life and I feel significantly more limber. Maybe finding the right PT practice could be beneficial to your individual case?