I've been using Epix 2 to track HRV since I got it. HRV values have always, without exception, hovered around 30. Months and months of this same level.
Over the last week or so, my HRV values have nearly doubled. Overnight values have gone into the 50s and 60s. Nothing really has changed in terms of my lifestyle or training.
Here's a screenshot:
Has anyone experienced this kind of change? Thoughts on what it might mean? Could it be an issue with the device?
Thanks.