Well Richard, you can hope it is just a "bad back".
I have all of those pains and symptoms and more due to the physical breakdown of my spinal structural system. All of my bone scans, Mri's and xrays have ruled out further cancer at this time, but for more than a decade I have been dealing with the chronic pain. Even the government agreed, giving me disability payments ten years ago.
All of this did bring up some serious questions during my initial cancer diagnosis. I hope your's is "just" arthritis and aging breakdown and not something more. Holiday best to you and your family.