I agree with Mekenzie, that it's your attitude and view of the circumstances that determine if something (like chronic pain) will ruin your life. However, I think that always being positive and "overcoming" your disorder is much easier said than done.
Over the past 3 years, I have gained about 50 pounds from a medication I was on, and I think that, because of the sudden weight gain, that it's causing my back to hurt. I have chronic lower back pain that I deal with everyday and I have to frequently & forcibly bend over and pop my back to relieve this pressure. I also have to stretch my back several times a day just to not be in pain.
I'm hoping that by losing weight, that I'll be able to relieve some of this pain and that my back will be able to support my weight once again.
This is my hope that lets me not worry too much about my back pain. And I'm also grateful that this is the only pain I have.