restless legs syndrome
"My restless leg syndrome results in cramp-like pains that nothing seems to help. Until I took 300 mg of Gabapentin. It definitely took care of the pain, but it left me feeling drunk the next morning! I was staggering when I walked and had great difficulty waking up. This lasted for several hours after I woke up. Thankfully, this only happened the first couple of times that I took Gabapentin. Unfortunately, it was only effective at 300 mg for about two weeks. I was supposed to move up to two capsules  (600 mg total) after the first week, but hadn't out of fear of the side effects and at first it seemed unnecessary. Once the pain came back, I added the 2nd capsule and the tired, groggy feeling lasted all day! I'm not going to keep taking it."