I hadn't heard about it really being given for Fibro. But, I know Neurologists have been perscribing it for people with peripheral neuropathy. Usually those dealing with high nerve pain levels. My mother took it for awhile but, it put her in a "fog" and she couldn't think. So she went off it.
But, we know another person who's on it and loves it as she can be "normal" for part of every day. She has Fibro & peripheral neuropathy & Lupus. (Dose was 1200mg per day). She's used to being in a lot of pain - all the time. With the Neurontin it seems to take the pain edge away, add energy & bring down the level of "shakiness". However; she's gained weight while on it - but, it's unclear if it's the Neurontin or the Prednisone that she's on. Another effect is her sleeping patterns have improved & she has less early morning wake-ups. (Using generic Neurontin).
So the bottom line is - it's different for everyone. Do work with your doctor to see if this is a product that will help you manage your symptoms. Hope that helps - keep us posted.
PS: Do ask your doctor what he thinks you have. You can also check with the nurse to see what "diagnosis" he "billed" the office visit at.