ibromyalgia
"Gabapentin kept twitching muscles and nerves at bay.  I found the side effects to be very annoying.  I had cognitive issues, while on Gabapentin, such as, hunting for the correct word from my varying and large vocabulary.  I also experienced memory (short term) problems. Now that I've tapered down to 300mgs 3 times daily, my memory has improved, and my vocabulary is coming back.  
I recommend this medication, yet, if you find yourself entering a room in your home and not knowing exactly why you are there, forgetting why you went there in the first place, blame it on the medication.  You are not losing your mind, nor are you suffering from early onset dementia!"