How long did that type pain last? Has it happened before? Did you do anything different in your day or was it out of the blue? The doctor who dx you with PN was a neurologist? Could you call him or her?
For msyelf I don't have this but I often have new issues or pains. It is hard to know when to call the doctor and when to not. I think it is always better to be safe then sorry.
Hope you find relief with neurontin. How long have you been on it?