Yes the elusive cause of chronic disease, now that's a tricky one. I'm a medical researcher and I can tell you the body is so complex compared with our understanding. It's good to always look for the cause, but so many times, we just mask or pacify the symptoms. I can tell you for sure I'm glad I started Lyrica because it has helped my sleep and so pain too. These drugs naproxen and Lyrica, they keep life bearable for me, I am happy with that.