Best thing to do now? Is keep a diary of where the numbness/pain ends up the legs or arms. Trust me, this 'measurement' can be either fast or slow.. IF fast? You mite have to go to an ER and then? You could be stuck w/the neuro on call...that's what happened to me and I got one of those docs with the 'attitude' that it's 'just PN'! As it got above my elbows and almost to my torso..? I went and got a second opinion...that saved my life I firmly believe!
So? Don't get and stay scared like a rabbit? RUN like a rabbit to learn as much as possible and find one of the better neuros to give you that critical 'once over', plus critical tests that get you diagnosed and treated in the end...if possible. Good luck and DON'T PANIC! It's ironic, but fear='stress'? Can make it worse. Learn relaxation therapies and find one either mental or physical that helps you calm yourself... until you KNOW what devil you are dealing with.
Hugs and hope and don't give up!!!!!!! 'S - J