I was up to 600mg of neurontin TID, for tension headaches, along...

I was up to 600mg of neurontin TID, for tension headaches, along with 150mg of elavil QD. My neurologist decided to wean me off the neurontin and told me how to taper off of it. I am now taking 600 mg QD, I am experiencing burning sensation that started in breast, then the rib cage, my back and all my extremeties and finally ended in my face. Is this a normal side effect from withdrawing from the neurontin. And if so, is there any damages that it can cause and if so, is that damage permanant? Can you please e- mail me back and let me know? I am very concerned and worried about this. Thankyou.