Feel "Some" pacing and not others
I have had a new ICD implanted about 12months ago. When l had a checkup, they told me the device is pacing me about 16% of the time which l believe is due to my heart rate being quite slow of a night given the medications l am on to forcefully slow my heart rate. If my heart goes at <=50bpm, it will pace me to keep me at a minimum of 50bpm.
With that said, i DO NOT feel this pacing.
Now, occasionally, l do fee some pacing, it is like a slight tens machine under my left breast tissue. This I most definitely CAN feel.. I have asked specialist, ICD clinic etc and they tell me some people do and some do not feel the pacing.
Again, the regular pacing ll DO NOT feel at all. If l have the ICD checkup doctors inflict pacing up to around 90bpm, l do feel a little light-headed when they do this test but certainly do NOT feel and flicking in or under my left breast.
I had an arythmia a few months back and l assume the device tried to pace me out of the arhythmia, l felt the pacing in the form of the flicking sensation on my LHD breast. It sone this for about 30second or so on and off the WHAM!!! off went the defib with a huge shoch, luckily it got to me before l went uncontions and shocked me out of the arhythmia.
My question is... Why do l not feel some or meost all pacing but do "sometimes" feel the flicking typ epacing.
Are there two different types of pacing? I have seen something around CRT (Cardiac Resynchronization Therapy) and was thinking that maybe l do not feel the standard pacing but l DO feel the CRT pacing.
If anyone can enlighten me on this as no one has been able to give me any information that may help.
I am very on edge after the last ICD SHOCK as l did feel the twitching/pacing just before it went off and am trying to distinguish if there is something odd going on here or are there two types of pacing one of which goes by transparently and the other l can feel (possibly CRT)?
I hope all of this makes sense but l am wanting to know what is possibly going on as now, whenever l do feel the pacing twitching me, l panic and think that is a precursor to the device being about to Shock me with a defib shock (they hurt).
Thanks all and look forward to a possibly simple explanation to what may be happening.