I have had DDD for years and have been in extreme pain for years. Have had PT, injections, back surgery (which speaking for myself, was not a good idea). Recently I went to see a pain management doctor. After hearing my story he recommended a permanent pain stimulator. As for the trial , couldn't expect better my pain was at a 9/10 I was bed ridden and with the pain stimulator my pain went almost completely away. Now I have the permanent stimulator. The recovery process is slow but again very little pain. If I were you I would find out if this device would work for you. Hope you're feeling better soon