Just broke something in my knee while walking. I've been doing research on it before my doctors apt. and found a great website.
http://yourtotalhealth.ivillage.com/
It asks questions about you and your symtoms and as you progress it shows from most likely to least likely and gives it in percent of possibility.
I'll be interested in seeing how accurate it is when I visit the Orthopedic doctor.
It also showed me what is involved in treating the injury or sickness.