Earlier this year I was diagnosed with a herniated L5 disk and a degenerated L4 disc. The pain has gotten better over time with the help of physical therapy and voltaren (diclofenac). In the beginning, I took Percoset as well, but it knocked me out and I was too groggy to work.
JS27 is right, you have to keep on moving or else you "rust". I've had to make some big changes as far as working on the cars are concerned - no more lifting anything heaver than 30-40lbs., minimize bending - squat or kneel on something instead in order to not bend the back. I also need to wear a soft back brace whenever I spend a long time driving.
Hope I can dodge the bullet and avoid surgery, because I've heard that the scar tissue after surgery causes more pain than the herniated disc. Oh well, one day at a time.