I’m 28 and on 150mg T4 and 30mg T3 / day, split across the day, and have been on same dose for years. My T4 is always mid reference range and T3 high end. Energy levels are generally fine and I feel “normal” apart from occasional periods of feeling awful which I attribute to food sensitivities / autoimmune flare up.
I exercise regularly but am not super fit genetically (never been good at sports etc) so am a bit perplexed as to why my resting heart rate is so low. It can go to 49 over night, hovers around 55 when T3 dose wearing off, otherwise it’s normally around 60bpm. I’m nowhere near an athlete- when I jog I need to take a break every few mins. After a few mins jogging my heart rate is at 160bpm and it goes up to 180 after a 30second sprint which is pretty high, which I’m also confused by if my baseline is so low…
Anything under 60 appears to be either athlete level or problematic “bradycardia”. I do sometimes feel slight palpitations when my heart rate is low. I’ve been to a cardiologist and had all the tests and been told I’m fine, but Should I be worried about this?