Gary has come close to my thinking. If you have learned to listen to your body it will tell most of what it needs. If you stay in tune with your body the communications will increases leading you to the best path to take.
In no way am I putting down the different types of medical information on this post. Just listen and your path becomes clearer. It even has the capabilities to help you select a doctor if you listen real close.
When I asked my doctor what is this stomach doing to me his reply was, “What are you doing to your stomach”? Since then I have found that one of the best ways to stay healthy is to control what I allow to go into my mind.
“Garbage in garbage out” Your immune system is listening to every word.
IMHO John C.