This may be of no value but, before I was diagnosed with SFPN and was desperately searching for answers, I saw a rheumatologist. That Dr told me I did not have fibromyalgia but had cross-over symptoms and recommended Lyrica. I've done, Gabepentin, Lyrica, Cymbalta and Nortriptyline. I've landed firmly on Lyrica (worth it if you can get beyond side effects) and new to the game is Nortriptyline. I took myself off of Cymbalta to have one less pill in my system as that was the one I felt was not a game changer. I griped for more pain relief to my PCP recently and he came up with adding Nortriptyline verses increasing hydrocodone. My neuro agreed to try. And round and round we go. I hear you when you say you are confused. Same boat here.