Thanks for checking Indy, and everyone.
Part of my dread is coming from knowing I won't have any anti-inflammatory medication for 3 days prior, and I still get swelling WITH it. If my neck looks like a balloon by then I will certainly want sedation. Thankfully I don't really have to make up my mind until Tuesday morning, though I am leaning in that direction. I've already asked them if I can have different people pick me up and they are fine with that; they just don't want me driving that day.
So the big lesson learned here here is to always get whiplash checked sooner rather than later. I had thought since it took two days for the swelling to start that meant that it wasn't significant and it was just muscular damage. I doubt the delay made things worse, the damage had already been done.
I really appreciate this supportive community we have here, far more than I can put into words.