I have to disagree. You don't HAVE to do anything.
I was diagnosed years ago (I am healthy now) with Gastro Esphopugal Reflux Disease (not sure if I can even spell it) and given medication for 2 years and told I might need an emergency surgery.
At the time I was seeing some of the best doctors around and getting worse. Luckily I found out about Zone Healing,
Zone Healing | Tony Tells All
threw my meds away and became better in a few weeks.
Develop a solid image of how you would like yourself to be. See if you are violating any of the laws regarding the body; nourishment, movement, recuperation, sanitation. Are you violating any mental or spiritual laws? Are you angry, fearful, hateful, etc...? If you don't know the laws, here is a good book
Rays Of The Dawn @ Concept-Therapy I hope that helps.