I had an ekg because i'm having heart flutters. i have panic attacks but what would have made "widespread changes " in my ekg?

What ARE the changes: It really depends what these changes are ... some are more worrisome than others. The word "widespread" would mean that the changes are seen in multiple leads suggesting that the finding is seen in multiple areas of your heart. But what the changes are...t wave inversion, ST depression, etc is much more relevant. It may mean nothing much or need further testing. Ask your doctor to interpret.