Started T3

[BeeGee1962]

My heart rate as always been low around 50-53 but since I've added 12mg of T3 with my 100mg of thyroxine it's went up to 56-57 is this a good sign ?

[humanbean]

It might be. Or it might not be. Are you a super-fit athlete?

If you are then a low heart rate may well be normal for you, and an increase might be a worry.

But if you aren't a super-fit athlete then you may actually feel a bit better with a slightly faster heart rate than you've become used to.

[Katepots]

I'd say it's not much of an increase and still low. Mine is up around 80-90 now...

[BeeGee1962 in reply to Katepots]

Thanks Humanbean ! Katepots was yours as low as mine and is it a good sign ? I am definitely not an athlete and even when I did exercise my heart rate didn't go up like it should . I am also feeling good at the moment not too much symptoms. Just a bit scared that I maybe do some damage to my heart .

[Katepots]

I'd say yours is very healthy, too low 40ish can be a problem, most people between 60&100. The faster the pulse is the harder the heart has to work so yours very healthy shows you are fit and I would say heart very healthy although I'm not a medical practitioner!

Mine should be lower(it was always 60-70) Which is good. Up around 90 less so.

[BadHare]

Mine was 85 BPM, but very weak & difficult to detect. Now it's strong & 85 resting, & up to 95 when I'm not.

[Hidden]

My heart rate's always been low 60s, all my life (and I have never been fit or even liked exercise) so I'm quite surprised that higher is more normal (whatever 'normal' passes as!) Hasn't gotten higher once I went onto Levo, mind I'm only on 50 mcg presently. Exercise is 'out' for me apart from gentle walking due to back problems.

High 50s is still on the 'low' side but could simply be normal for you, and has room to increase if you feel better adding T3.

[BeeGee1962 in reply to Hidden]

Thanks all you've put my mind at rest 😀

[LAHs]

60bps is about normal but also measure your blood pressure (BP). I found that when I take too much T3 my BP rises more than I feel "safe" with. My pulse rate increases with my BP, I think that is how it works: if you increase the work for your heart to do (i.e. cause its rate to increase) then the pressure will rise. Increased pressure does damage in the short term (blows any weak links in your vascular system - strokes) while high pulse rate just slowly wears the heart out.

In my very humble opinion I would keep track of your BP more than your pulse rate which has had a very minimal increase.

The general formula is Blood Flow = Blood Pressure * Resistance from vascular system.

So, so long as Resistance is the same, Pressure will rise as Flow (which depends upon bps)