My cardiologist did not do echo nor stress test during these episodes - just heart monitors 2x. Seeing an EP in July and maybe start with a loop monitor I was told by others . Someone told me to wear a certain lightweight vest or garment that detects your heart rate at night and will shock it back into rhythm or an Apple Watch that will buzz and wake you to indicate a dangerously low heart rate . Anyone hear of these? The dizziness is really nerve racking .