Gazelle said it best....just try to relax.
I've had the burning and the numbness in both legs at the same time. It sux......but it does go away eventually. Mine lasted about two months. My right hand is totally numb and has been for over a year. The doc thinks it's permanent. I've learned to compensate and work around it. I've also learned to write left handed!!
Like Bill said you have to take the Neurontin steadily - it's not a pain med that you take just when you feel the burning sensation. It's something that you have to find your optimal dosage of and stay at that dose whether you feel you need it or not. Pain and sensory sx are much easier to deal with if they don't get out of hand before you start to address them.
I truly believe anxiety is playing a major role with the sx you are having. Have you spoken to your doctor about an AD or something for the anxiety? It may help.
I haven't had my dx but three years but have had MS for at least five (probably much more). I used to get majorly stressed over any new sensation.....now, I hardly get upset over anything anymore. It is what it is. I'll deal with it the best I can and move on.
I hope you feel better. Try to just relax and take it a day (or hour or minute) at a time.