When I saw my Specialist...IE Neuro Dr......I complained of lower back pain that had recently begun to ache...he thought it could be the nerves trying to re-attach, because the back is where recovery starts....then 2 weeks later I got shingles.....so who knows? He put me on a small daily dose of Neurontin for the nerve pain. As time has passed and the PAIN and discomfort of the shingles fades (slow process ) I am remembering Neurontin. I took this years ago when I was having horrible nerve pain, but opted off it as I couldn't handle the foggy feeling it caused especially driving and working full time. Numerous other treatments and med reduced the nerve pain to barely noticeable now.....I am fortunate.......but now I notice a bit of that fogginess....again. I was chalking the....I don't care........floor needs swept......dishes to do.....sometimes making a attempt to try....as part of the shingles........but too much time has past.....It's not so hard to handle things sometimes if you can pin point the orgin....knowing my fogginess comes from the neurontin is ok.......it's doing it's job....I just need to work with it and.......just do....which is hard when you don't want to or care to. It could be worse.