What To Do If Had Severe Back And Legpain, Difficulty In Bending At The Waist, Numbness In Hands After Chiropractic Treatment?

I went for my first chiropractic treatment in last May, 2013 and was rushed into ER the next day. I was in severe back and leg pain for 2 months and lost some physical strength with my legs. It has been more than 6 months now, I still find it hard to bend backward or lean forward and I often wake up with numb hands in the middle of the night. X ray and MRI did not shwo any disc herniation but why would I experience such strange sensations after all? When the incident first occured, I suffered sciatica for several weeks as well.