I wholly concur with what Caledonia, Justy and Enid said above. Acceptance has helped me emotionally, mentally and spiritually. Physically, no. I'm actually worse physically now than when I began practicing acceptance. But I'm SUFFERING less because I'm not torturing myself with questions about what is it, why me, will it ever go away ... (Well, except sometimes ....) It is what it is. I move on from there and do whatever I can to have the best day that I can. And I think that's key also: I try to focus on today, this moment, rather than think, oh crap, am I going to feel like this forever? It may sound Pollyanna-ish, but it's not denial, it's not whitewashing, it's just ... This is my life. Somebody else has a healthier body, someone else is worse off. This is what I've got-- today.
AND-- even Eckhard Tolle (who has made all the difference in my life) says that if you can't find acceptance-- accept that. I guess it's about stopping the fighting. I don't have the energy to fight what is anymore. There's a difference between resignation and surrender. I see acceptance as surrender.