Tattoo Sunday

Hey loves I’m getting my biggest tattoo on Sunday it’s going from the base of my neck down to about the top of my butt. It has a lot of detail and is an all line work piece. A lot of said detail will be on my spine. What should I be prepared for, I also have pinched nerves in back so will it make the pain worse? And I know I need to bring something to snack on any recommendations? I normally don’t ring anything because all my other tattoos are on the smaller side and didn’t hurt at all.

These are what I have so far

This is what I’m getting going down my back