Hi R.,
I'm so sorry to hear of your loss. Please be good to yourself while you heal emotionally and physically.
I understand that general anesthesia has risks but I would consider some light sedation so that you miss most or all of this sensation. Not sure what "anti-anxiety" prescription they have suggested - if it will make you very foggy and then wear off, it's possible it would be enough, but I would ask some more questions of the anesthesiologist. You don't need to be unaware for very long so you don't need to be put "under" with anything very strong or long-lasting.
Also, I would absolutely question the Motrin! It can be associated with increased bleeding, like aspirin, and I would get another opinion or two on that. I can't imagine why they would think it was a good idea.
Good luck whatever you decide to do.