Our expert says:
I think it warrants enough concern to see a doctor. When you add up all the symptoms and the history - the leaky valve, blue lips, drop in BP and the rapid change in heart rate, it's something that you should see a doctor about and have a full stress ECG to diagnose what exactly might be wrong there. I don't mean to alarm you, but to say either yes or no to your last question would be reckless in that there's no identified cause. So you need that diagnosis, and a stress ECG is the way to get it. So you'll have to look at that first, before you can make any decision.
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