My Ortho Doctor Now Wants Me To See A Nerologist,

my ortho doctor now wants me to see a nerologist, how will that help? I am so tired of never ending testing. MRIs, xrays, blood tests, therapy, I am still in so much pain I can't sleep through the night despite pain killers, anxiety medications, home exercises, out patient therapy, aqua therapy. I want to live a normal life again, I want to be able to pick up my grand kids and play with them.
This is causing me so much depression and a feeling of hopelessness. I simply cannot take much more of this. Please help