[pavulon]

Not a cardiologist so in that context my opinion and experience would be that healthy people can have considerable variability in their pulse--which can be seen as a sign of good health.

Pulse variability AND symptoms like light-headedness, fatigue/shortness of breath, pain or others can be a genuine cause for concern and investigation in short order.

I'd stay in tune with it but not obsess--which is tough for some. Finding a way to address the level of stress in your life would time well spent.

Keep us posted and good luck!