Neurontin and hard to concentrate

I have been on Neutontin for about 8 or 9 years. I still experience side effects that I just can't get rid of. I take 400mg 4 times a day. I have swelling of my abdomin, hands, legs and feet. I feel drunk and ditsy. I have memory loss and find it very hard to concentrate. On the up side, I am very happy and feel as though I can accomplish anything when I take it. I have the courage to do things I normaly wouldn't do. I am taking it for seizures and also nerve pain from a back injury. Just wondering if anyone else has experienced anything like this.

I have horrible nerve pain of the right hip and leg ,all the way down to my toes, after two four level bone fusion sugeries.This has been going on for three years so they put me on Amytriptyline to help me sleep. Because the pain was waking me up after three hours of sleep. Then they put me on Neurontin 900mg a day for the nerve pain and my world turned upside down. I was tired all the time,weak, and it was very hard to concentrate and function. I had to stop taking it because I didn't think it helped my pain enough to put up with all the side effects. I'm on new medication and this one is much better then neurontin. To all those other people out there good luck I know how you feel, it would be great to feel pain free for just one day again!