Nerve decompression surgery

What can anyone tell me about nerve decompression surgery’s? Any personal experience?

I’ve had NDPH for 8 years, it’s constant 24/7 pain in the back of my head going down my neck and can reach around my head like a band it points. I’ve tried every medication and treatment under the sun. I’ve given up on my diagnoses over the last few years but I’m only on my mom’s insurance for another 6 months and she’s graciously offered to pay for this surgery before it’s too late.

I know what everyone in this page deals with and I feel for all of you. Thanks :)