If they found anything significant or immediately dangerous, you would never have walked out of the office. You would have been put in the hospital on the spot. I really think you are going to find that everything is fine.
The test was "no big deal" was it??? See? You were worried :-)
Lol well I did get my heart rate up to 215 bpm, it wasn't too fun my heart rate was at like 180 then I had a pvc and I panicked and it shot up to 200+...but im glad to hear that if there was something wrong they would have told me.