A picture of the ECG trace is in my profile.
Sorry im so late to answer you alex.
What you experienced was an episode of svt.. Superventricular tachycardia.. Im gonna work on getting the picture to a reasonable size where i can maybe give you some more specific information.
However given how fast it started and stopped its very likely that it was an episode on avnrt.
In most cases svt isnt dangerous, but its treatable through an ablation procedure.
The procedures carry very low risks of complications and have very high success rates. They are a very viable option if these episodes really bother you.
If theyre not significantly impacting your life however, not treating svt rarely does any sort of damage physiologically speaking. In other words yes youll live.
This is all very preliminary. I do work with cardiac electrophysiology, however i am not a doctor and can not diagnose ecgs. Further i can only see a thumbnail, and theres still a few things id need to see on a larger image to get a better picture on the TYPE and severity of the svt.