Thanks for this post. I was getting really bad acid reflux after recently starting on the R Lipoic acid, 100 mg. I was blaming it on the gabapentin and had no idea! Stopped the R Lipoic acid and it is gone! I was waking up in the middle of a sound sleep thinking I was going to throw up and had no idea what it was. It was also happening during the day, 4 or 5 times a day. I am now taking Alpha Lipoic acid, 300 mg, with no problems.