I think it might mostly come down to how well pain meds work for you. Since you've had back pain, do pain meds help with that?
My first surgery AND experience with pain meds was at 28 when I had my tonsils out. A coworker had his out right before I did and talked about how easy it was and he didn't feel a thing. That was NOT my experience!
Then I saw a neurologist for migraine help and none of the usual pain meds did anything for me.
I had my gallbladder out last year. My elderly mother had hers out the year before and she was loopy for 3 days on pain meds and doesn't even remember it.
When I asked the surgeon about pain meds because none of the usuals worked on my headaches, he assured me that it's different pain and just because they didn't help my headaches didn't mean they wouldn't help my gallbladder surgery pain...he was wrong.
However, MOST people have decent relief from pain meds and I hear a lot of people they don't like to take them because they feel loopy. I would LOVE to feel loopy and less pain! lol
So, back to my first statement, if you have had success with pain meds in the past for other reasons, your pain after surgery should be controlled as well.