Numbness in my both legs and hips. Me.

Two months back suddenly I got numbness in my both legs and hips, I was not able to walk or stand. I was immediately admitted in hospital.. Doctor did Mri brain, Mri spinal cord, nerve conduction study, vitamin b12 test, many blood test, urine test, took some liquid from my bone marrow.. All tests reports came normal.. Then doctor started treatment of steroids for 5 days and discharged me.. And gave medicines.. Still iam on medication.. I consulted Ayurvedic doctor also, they too gave many medicines.. But still my numbness is same. Two days back doctor repeated all the tests again.. The result came same.. Normal... Iam not able to tolerate the pain, burning sensation, tingling sensation, electric shock sensation etc.. Please suggest me what to do and how to come out of these problems.. Now iam taking medrol 16 mg, gabapentin 300 twice a day, pregabalin 75 mg at night, ropark 0.5 mg twice a day,zolfresh 10 mg at night.. Please help me.