Hi Jason, Looks like the NHS are already trying to fob you off as it wouldn't be you not knowing what you are looking for, it would be you showing them so they can decide.
In my case they had been investigating me for two years and never found anything at the time of the tests, which is why I bought my own ecg. a Prince 180B which I see are now £189.
I was getting two symptoms, as soon as I got one captured on my device, I printed it off and took it to my GP and said this is what happens when I get said feeling.
He therefore sent it to a cardiologist who said it was just benign ectopic beats and nothing to worry about.
I should have waited to capture both symptoms as they felt different and the second one looked quite severe on the graph, so when I went back to my GP for the results of the first one, I then showed him the second one and said, "what about this", he, (a mere GP) looked at it and said, "thats just more of the same", that would have been that and maybe I would be dead by now if I wasn't lucky enough to have a friend I see every couple of months who works as a secretary in the NHS and so has access to cardiologists. She said she wanted to get a second opinion, so I let her, next thing I have this second cardiologist ringing me at home telling me to call an ambulance.
If you click on the box below, you will see one of the graphs this ecg produces, whilst the written comments the thing comes up with are rubbish, the actual graph looks exactly like the one in the frequent ambulance rides!
If you do get one, you either already know what a normal heart rythem looks like or just look it up on online images, an ectopic beat will stand out as being different from all the others. In my case here, you will see just a few normal beats, most of them are ectopics joining together to form Ventricular Tachycardia.