Hi I was told when I was first dx by my neuro that usually it is worse on one side but well for me since it is the legs that both are effected. At first I had it in one limb though it showed in the tests in both but within a few months both my legs hurt though the original is still much worse. I am not sure if some is because I rely on the better leg too. I am hoping with better pain control I can be more even so to speak