I would be concerned by that description. With your previous pulmonary embolism and recent surgery, you are at greatly increased risk for having another one. The EKG is also of concern, if it really did show myocardial ischemia, and was different from previous EKGs. Perhaps your doctors did all the appropriate tests, but I could not say for sure without actually reviewing the test results. Your blood pressure will also need to be rechecked, as 180/120 is quite high.