How Can Pain And Numbness On The Left Hand Be Treated?

Hi My name is Samantha Watson. My Email Address is YYYY@YYYY . I had surgery on my c5 dic about 6 six years ago. I still have pain and numbness. It was in my arm. it moved down in my left hand and then my right arm and hand. It comes and goes. So now, I work cleaning the bank and call center. I have hurting pain and numbness in both my hands so bad, I cry, I cant sleep, and I can hardly do anything with my hands. I take Ibuprofen and Gabapentin 600mG to sleep at night, but the pain is still there. Can you explain to me what is happening and what can I do to fix this problem?