Bezüglich

On Monday, January 29th, a portion of my left foot lost some of its feeling. It's not completely numb, but it's close. Two days later, something similar happened to my left knee, although it was even less numb than the section of my foot in question. There hasn't been any loss of strength, or any change in these parts since they began behaving the way they have.

The doctor at the walk-in clinic (which I headed to after the foot kicked in, but before the knee) scared the shit out of me by implying that it could potentially be Multiple Sclerosis, since the kind of strange nerve happenings that must be going on with my appendage are fairly unusual. While he said the chances were probably 1% or so that that was the case, he left it hanging in such a way that suggested he thought the chances were much better than that in my case.

A visit to the emergency room for a second opinion after my knee got involved resulted in a more thorough examination (reflexes, judging direction, flashing bright things in my eyes, etc) and a similar, but somewhat more comforting prognosis. Sure, it could be MS, but it's far more likely something like an inflamed nerve. Should clear up in 7-10 days. Nothing to lose sleep over. Except it's been 7-10 days now, and no change. So what is it?

Anyone with any insight into the causes of isolated patches of partial numbness?