I had back surgery just over a year ago to fuse S1 and L5 which was successful. Tonight I was cooking dinner and my left leg went almost completely numb and I am having a hard time walking. Do I need to seek prompt medical attention now or can it wait for tomorrow?

Did feeling come back, or is it still numb. If still numb, I would get it look at now.

Please contact a neurologist soon. A non-treated compression may cause permanent damage of the spinal nerve(s) involved.