I am 42 years old and started having lower back problems about a year ago. My job is pretty physical, so I just attributed it to that and stress. The pain would be really bad in the morning and sometimes I'd have "flare-ups" during the day. Well, I tried switching mattresses, taking NSAIDS, and wearing a back brace before deciding that it was just something I would have to live with.
For unrelated reasons, I gave up caffeine completely (including chocolate, unfortunately). Incredibly, my back pain went away! I couldn't believe it. I hope that some of you can benefit from my experience. Yes, it's hard to give up that morning cup of coffee, but let me tell you, it's worth it! Just give it a try. It was only a few days after quitting caffeine completely that I had relief. Best of luck to everyone out there.