You may have more then just one thing going on? I do know that I have severe pain but at times my muscles ache. I have PN and RSD and I am not sure if the ache is because I am doing more or I lay heavy on other parts of my body to protect the most painful though I am trying to work on that. Have you been tested for other things like auto immine,fibromyalgia,bloodwork for vitamin problems? I hope you get some answers and direction and relief soon