I am new to the sport and have been training since June for my first Triathlon which will take place in may 2006. I have been running 6 miles approximately 3 times a week for the past several months. I have experienced a set back in my training and it is very disturbing since i have increased my time up to 8:10 per mile. The doctor states that it is tendonitis. I get a severe pain in my foot in the heal area just below my ankle. Very painful to walk, let alone run. The pain usually lasts several days and then i am able to run again, only to experience the same problem. The doctor has giving me medication to reduce swelling (which is not noticable) as well as heal inserts. He says that it is tendonitis and asks me to keep running on it. However, in my research on the internet, i have found that it is better to keep off of it so that it can heal. Any suggestions on what to do? How long does something like this last? Since i am new to the sport, i hate to have any setbacks that may discourage me from continuing.