I am a 50 year old women healthy ha ha just ran a marathon 1 month ag before the marathon I had some chest discomfort, jaw pain, pain in the middle of my back they always seemed to subside.. for the past 10 days I have been extremely exhausted. even after I slept 7-8 hours,,, ,every day I get chest pains that come and go some last for quite a bit. aturday and Sunday I felt even more exhausted. .I tried to run, but had to stop several times. .today, I felt a bit dizzy, had the chest pains, pains in my jaw, and a slight pain in my left arm.... ince I have been home from work I still have the jaw pain and feeling a bit sick t my stomach. ..I checked my blood pressure and it was 148/75. .not so sure what to do..