So sorry I just now saw this post, I had been out of town.
I understand how you feel, after my last visit with my Dr I felt the same way. I KNOW I'm going to be in pain the rest of my life and there isn't much I can do to make it much better.
3 years ago I was on some many meds I felt drunk 24/7, that's when I said NO MORE to all those meds and started getting off of them, I just knew there had to be a better way to deal with all this pain. I'm not sure if my over all pain is better now because of the supplements or if it's just because I was in a long fibro flair than and am just doing better now on my own. I still have awful 24/7 pain and headaches that I almost never get a break from but I just deal with it hour by hour and don't even think about how I "might" feel the next day. I do my best to keep my mind off of the pain.
I don't want to say your Dr is right about the exercising, I just can't do much, I walk, OK, I walk IN Target 4 times a week, LOL, I LOVE my walks, DH doesn't because it hurts our bank account, LOL. Anyway I was 180lbs 2 years ago and have now lost 60lbs and I felt my worst at 170-180lbs pain wise. I don't have all that weight to carry around so moving more is easer on me.
I wish I could take all of your pain away.