I Have Body Aches. Legs. I Have Had Previous Back

I have body aches. legs. I have had previous back surgery (fusion L4-5), spondylolisthesis,. been exrayd that showed I have arthritis in spine(lumbar) and now neck has bone spurs. I ache when walking and can't seem to get comfortable. Could this be my arthritis escalating? I am allergic to nsaids, I have been taking 5mg Percocet @ twice a day, but now that isn't helping.