Deb, I'm so sorry to hear you're feeling badly.. (here's a hug ((

)) )
Though I am wondering why your doctor suggested this drug for you.. I know Elavil (brand name) is a very old drug. It's been in use for more than seventy years.. Some practitioners still perscribe it for certain types of migraines and as an antipsychotic, but as DeBora mentioned, it can have terrible side effects INCLUDING neuropathic pain(!!!!??)
There are newer drugs to treat the same problems... Many of these drugs that have been used for years to treat epilepsy and are now being perscribed to prevent migraines, control mood swings and treat neuropathic pain.
I took a combination of Welbutrin, Neurotin and Celebrex for my pain. (The neurontin was the drug that saved my life!) I stopped the Celebrex because I have a clotting disorder, and didn't want to take the chance.. so I now take Naproxyn Sodium ( Aleve) instead.. It soesn't work quite as well.. but I'll still give it an "A".
Neurontin and Welbutrin do NOT have the weight gain, dry mouth, fatigue and other psychogenic side effects as tricyclic antidepressents (like amitriptyline) do...l.
Get a second opinion... You have nothing to loose.