I think there is definately a connection. Too many people have both and the symptoms are too similar.
I've been in a NM splint for 2 months and haven't gotten much relief yet. The pain is a constant all day with spikes over it and the spikes haven't been as bad, so some progress i guess. The pain is brutal, tightness, and pain up behind the eye. Neck and fingers too. Talking to people on the boards it seems 6+ months is a minimum to get over it. For some its over a year.
My neurologist wants me to try Trileptal (another anti-epileptic one similar to neurontin) but have been holding off. May have to try if I don't get more relief soon. How were the side affects for you on neurontin?
I can't believe they haven't figured out the connection yet. Joint inflamation, disc inflamation, disc displacement. Something has to be the cause that sends the nerves going nuts.