I am on Neurontin for the 2nd attempt and find I cannot get past the feeling of exhaustion. I have insomnia and when I finally fall asleep (never for more than a couple hrs. at a time) when i wake for the day, I feel like a walking zombie. I hate this medicine. I tried Lyrica as well, which caused my vision to be blurry all day/night, so I had to stop that. this is why I am trying Neurontin again. I am going to ask my Dr. about topomax since my migraines are getting out of control. It would be great to find a medicine that works for the pain w/out side effects, but that is asking for too much!! I do take cymbalta 60 mg 2 times a day...no real side effects for me, but not sure it is helping!! good luck!!