Pacing with hr monitor and OI

soti

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I've been pacing with a hr monitor (Fitbit HR Charge) for a month and change, and my resting hr has been going down. Which is good and I feel more rested but the lower it is, the more I feel woozy and headachy and orthostatically intolerant. I do normally but this is unusual. Anyone experienced this?

I wish there were a resting heart rate that was goldilocks-right in between but I seem to go from digging myself a hole (higher hr) straight to woozy mc wooz face (lower hr)
 

soti

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"low" in this context is around 73 bpm (this is fitbit's proprietary calculation of resting hr, something like a daily average over times they deem you to be resting)
 

soti

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Yeah, that's the thing. hr pretty normal (did fail a poor man's tilt table test, i.e. +40bpm between lying and 10 mins standing). bp pretty normal. blood volume? but why only when hr has come down? could a higher hr mask a blood volume problem?

I don't expect there's anything to do about it other than the usual OI stuff but curious if anyone else gets this and how they deal with it if so.
 
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My resting heart rate fluctuates between 55 and 64 (I have a Fitbit blaze) There doesn't seem to be much rhyme or reason as to why it's lower some days than other days. I don't get any symptoms like you describe when it's on the low side. It seems to be lower when I've been more active but can change from day to day. I just ignore it as probably being a factor of how Fitbit average things.