coffee enemas do act as a pain reliever, are you in the condition to try those?
Have you thought of fasting to help ease the stress/pain on your body?
Hot/Cold water treatment?
Seems you know what you can do, but sometimes the state of stress can alter your natural healing instincts.
If it's any consolation, my bf's father, 55, was in a bicycle accident, t-boned a car, and flipped completely over it with a concussion. He was pretty banged up and took meds, but you should be proud that even with your amount of pain you're trying to do what's right for your body.
Are you taking time off from the regular work schedule? If so, use this time to do as much possible to help the healing process along. I think you already know this, just thought I'd put it in writing ;)