Were you taking the percosets before starting the GABA? Are you taking both at the same time?

I was on gabapentin for many years. Are you aware that it is usually necessary for the dosage to be increased, a lot? Like to 600,1200, 2400, 3200. It's fine to go slow and the early side effects may subside, at least enough to be tolerable and worth it. Don't let the doc increase it until you can handle it. Is it helping you yet?