I underwent ACDF C5-C6 and C6-C7 with fusion, and I am now 7 months post-op. The pain relief was immediate and I no longer take Lyrica or muscle relaxants. However, I find that my upper body will go rigid after doing stretching exercises or at times for no one. I also experience mild pain in my arms at night when I go to bed which is helped by running a massager over the muscle in my bicep. Just wondering if anyone else has experience upper body stiff and pain at night in their arms.