Been dx with the above, am being tx with Lyrica 200 mg twice a day an Elavil 25 mg two at night. The burning is still severe and the weakness in my legs is becoming debilitating. Now I've begun to have frequent twitching/jerking in muscle groups all over my body. The bottoms of my hands and feet are always beet red. I've been on this drug regime for about 5 mths. Is there different medication available that would better help my PN? Thank you.