Hi, and welcome to the board. I would advise you to make an appointment with either an orthopedic spine specialist or a neuro who devotes most of his practice to the spine. Have you already seen a doctor who has told you that you have degenerative disc disease?
It would probably be best to stop weight lifting, at least for the time being. That is hard on your discs and may very well have played a part in causing the problems you are having. Could you tell us more about your symptoms so that we might be better able to advise you? Do you have any pain in your legs or is it all in the back? Can you describe what the pain feels like?
Please let us know how you are doing and what your doctor says....
Carol