That's not really fat, but it is probably overweight, unless you are very athletic / weight lifter.
I would definitely try to get to 160 and see if that helps. Yes, you'll be skinny then, but it beats elective surgery IMHO. I have a buddy with several bad disks and weight makes a big difference for him. He carries most of it in a beer gut, so that seems to take the spine out of balance really badly. As soon as he is down to fighting weight, he feels a lot better.
G