I started on 300mg of neurontin for bipolar disorder a week ago and was aware that another benefit is it would help with my migraines. I also take 500mg of magnesium for my headaches but I space it out so that it will not conflict with the neurontin. I had the strangest migraine last night and my aura was different and I have not suffered a headache for several months, last time being caused by Lamictil. I found out the reason why there, was Lamictil messes with the metabolization of birth control pills, hence messing with my hormone levels which equals a migraine. So far neurontin has not caused any other side effects and I rather like it. I goggled rather or not it can cause migraines and did not find much. However, whenever I put something new in my body it lets me know if I am migraine sensitive to it or not. I need some feedback as to rather or not the neurontin is causing me migraines. Oh, and as far as asking my doctor, well she is a flake and only deals with head meds not migraines, so I am at your mercy. Thanks!