Brought this topic up a couple of years ago,yes still alive?    Resting lower figure is 58,  80 something over 58,when I get moving it climbs to more respectful figure

  I do take Thyroxine 200 mg,but this increases HR to 78 over what would be of 65 without taking Thyroxine,...but then thyroid problem,  TSH would be getting well outside the ballpark figures

  I post this as at sauna if I go from hot  to cold too quickly I faint   guys there roast then into cold plunge within seconds,finish me off

 

   What I am asking,do I stay on 200 mg daily to keep TSH in balance,or take less to keep HR down,which is the most important?     Thanks for relies 

I assume you mean you take levothyroxine and 200 mcg not mg?

 

There is nothing wrong with a HR of 78, perfectly normal.

 

You should take thyroid medication according to blood test results and under the care/advise of an endocrinologist.

 

It sounds like you might also benefit from check up with a cardiologist.