A 20-year-old male asked:
What are some endocrine causes of extremely hard and kind of fast heartbeat, but normal when relaxed? any information would be greatly appreciated.
1 doctor answer • 1 doctor weighed in
Endocrinology 41 years experience
If you are on: thyroid replacement, make sure your levels are normal. There are a variety of potential causes, not just hormonal. Because of the complexity of your particular situation, it's best to discuss it with your doctors who are familiar with your case.
3.8k viewsAnswered >2 years ago
Last updated Aug 17, 2014
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