Hello again, I'm still battling with Levothyroxine & what a battle it's turning out to be! I was just wondering if anyone could tell me why my pulse is slow (56-60) & then when I put the body under a bit of physical stress, my heart rate goes up to 80+ beats per minute. I feel completely exhausted & can't do anything for hours.I also feel like I'm going to blackout. I'm on 75 mcg & have been on that dose for about 5 wks now.
Thanks in advance.