Have you tried epsom salt baths? I was having a hard time with similar and was suggested that though I am on the one person who does not like them. A warm bath though can help. I also agree with magnesium. Do you drink enough water and eat foods with potassium? Have you talked to yoru doctor about muscle relaxers? My pain doctor said that this is connected to the PN but who knows. I would get blood work done too just to rule out other things going on. Feel better