Someone needs to do an MRI and concentrate on L3, L4 and L5 as these are the 3 that would most likely be involved with no feeling in your legs. I didn’t fall but was having numbness on the left side with hip and knee pain. The MRI showed that I had serious compression on T10, T11 and L1 all the way down to S1. Foot long scar down my back and it was a lamenectomy (SP) that they performed to relieve the compression. A week in the hospital and a couple months rehab. But, it beat the alternative which would have been a hoverround. You need to find a neurosurgeon that will maybe help you. My prayers go out to you.
Prayers your way!