Yes! About 2-3 weeks after my very successful septal myectomy at Mayo, I started getting dizzy and giddy when moving about. After much complaining and a syncope, I wore one for a month and had to press a button each time I was dizzy and giddy. Between the time the monitor was sent to the lab, and my cardiologist learned the results (I was having many arrythmia, undetected upon examination because I was sitting/laying rather than moving around), I had another syncope. It was a great day when Buddy, my ICD, was installed, no more dizziness, giddiness nor syncope!!!!