Good luck, and hopefully it's nothing - just like mine was last year. After an abnormal EKG, I was put thru the wringer with thousands of $$$ in tests ~ ~ ~ heart cath, medical stress test, echocardiogram, abdominal aorta and carotid artery ultra sounds ~~~ and they couldn't find anything but some narrowing in the carotid arteries ~~ and that is chalked up to the good old aging process. All that for nothing and no explanation as to why the EKG showed abnormalities. Thank goodness for Medicare and my supplemental insurance - I never had to pay a penny for any of those tests.