Fingers crossed
A couple of years ago I had an ECG done by a general nurse at my GP's practice. It come up with an 'abnormal' reading.
There followed weeks of tension and nervous waiting on my part, until I went to hospital, had an ECG done by a specialist physiologist and then the results checked by a cardiac physician. They even did a stress test, pumping dye into my blood.
Result: doctor said I had a the heart of a race horse!
All that worrying for nothing. So fingers crossed for you mate.