My right foot has been numb for a week now, first it was along the right side of the foot itself, the last three toes.. The numbness is starting to spread a bit farther along my foot on the bottom of the foot and it feels like its bit swollen as well, also have felt my lower back leg a bit week, kind of numb as well. could this be caused by having had severe lower back pain? I ve been told my lower discs are compressed, I ve had a couple therapy sessions but its the first time that my foot goes numb.