My HRV was 61 this morning! And I do feel better than yesterday, when it was 49 - it's so much higher than over a year ago. So glad I got reminded of the visible app!
I’m very sorry to tell you this unless you know it already,
but sudden spikes in the HRV is the body trying to put the brakes on.
I don’t remember the reason why you feel better, but if you try to act as if you have a good day on such a day, you’ll most likely crash hard.
HRV rising over a longer period is a good thing.
HRV rising high from one day to another is a bad sign.
Here’s an example:
I was in PEM in the beginning of this period.
HRV was a bit low.
HRV was perfect on Thursday, but I knew I should have stayed at home.
But I had an appointment I had to keep. Red circle.
My worst PEM usually hits on day three.
Here’s what happened.
HRV is spiking. At Friday and Saturday it was difficult to calm down, I had lot of nervous energy but knew it was from doing too much, so I did my best to rest.
Day 3, Sunday, I was feeling really ill, dosing on and off through the day. Blue circle
But I have really overdone it this time.
When the body sees I’m finally resting, HRV falls again, downhill the next three days. Finally it tries to stabilise. Green circle
(I don’t usually have PEM for a week, but too much have been happening for too long)