Hi I am a 32 year old male former borderline elite lever runner. My marathon PR in 2006 was 2:23:16, I also ran a 29:05 10,000m. However as of August when ever I run I get bad chest discomfort that stops me in my tracks. The pain usually occurs within the first 5:00 of running. I will stop once the pain is intense then start running again after it goes away sometimes it will come back 2 or three times during a run and it will stop me each time. However sometimes the tenderness is there and I am able to push through it however it is always present now ever sense August of this year. Does anyone know what this could be?
ALL EKG's are normal, every heart ultra sound I have had has also been normal.