Avatar universal

Reason for tachycardia?

I am 50 yr old woman, overweight but a consistent exerciser.
I have been having episodes of tachycardia per my Apple Watch and symptoms. I  did just complete at 24 hour Holter monitor test.

Is tachycardia more likely to be caused by weaning off Paxil, going onto Cymbalta (it's a noted side effect), sub-clinical hyperthyroidism,  anxiety or stress?

Sometimes  it is low, but it seems to jump around , less when I'm actually exercising (although it gets up to 170 ish while walking up a hill trail) and jumps around more while I'm just around the house. I didn't think I had symptoms but now I think maybe I do!! UGH!
2 Responses
Sort by: Helpful Oldest Newest
Avatar universal
Make sure you have your iron levels checked! Not just a ferritin either as its not a good indicator of overall iron status. Get a serum iron, TIBC, Saturation, and Ferritin- so four labs. Ferritin can be high from inflammation or low from MTHFR issues- so not correlating with true iron status.
A high heart rate could be from hyperthyroidism, but if it goes back to normal at rest, its a good idea to first check your iron levels.  Don't take any iron supplement for 2 weeks prior.
Helpful - 0
159619 tn?1538180937
Having just had a Holter, I assume you are under the care of a cardiologist, did they have an opinion. I doubt it's the drug change but a doctor needs to make that assessment. 170 beats per min is right at your max heart rate (220-age) and it should take much more exercise than walking up a hill to get there. Let us know what your medical provider said.
Helpful - 0
Have an Answer?

You are reading content posted in the Heart Disease Community

Top Heart Disease Answerers
159619 tn?1538180937
Salt Lake City, UT
11548417 tn?1506080564
Learn About Top Answerers
Didn't find the answer you were looking for?
Ask a question
Popular Resources
Is a low-fat diet really that heart healthy after all? James D. Nicolantonio, PharmD, urges us to reconsider decades-long dietary guidelines.
Can depression and anxiety cause heart disease? Get the facts in this Missouri Medicine report.
Fish oil, folic acid, vitamin C. Find out if these supplements are heart-healthy or overhyped.
Learn what happens before, during and after a heart attack occurs.
What are the pros and cons of taking fish oil for heart health? Find out in this article from Missouri Medicine.
How to lower your heart attack risk.