Suggest Treatment For Degenerative Disc Disease Leading To Severe Back Pain

Hello Dr. I was diag with deg disease in L4- L5 in 2004. I was suppose to have a fusion. and opted out.... the pain is always there and I was on vicodin for 2 years afterwards. But it was too much with vicodin by day and laxatives by night. My pain is still there..... at each move I make..... Now I just bought a rower and wanted to know if it will injure my back further