Armour Thyroid Chest fluttering: Hi All, I... - Thyroid UK

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Armour Thyroid Chest fluttering

DJ3271 profile image
5 Replies

Hi All,

I switched to Armour Thyroid after a bad go with Levothyroxine (terrible anxiety and chest pain). I started on 60 mg and felt great (chest pain and anxiety stopped). My TSH was 2.3, then I stared feeling hypo and was tested again and I was at 35.1!!! So I was upped to 90 mg. It has been 3 weeks.

I am now having occasional chest fluttering and palpitations. I am hoping my body gets acclimated to it. I also was taking omeprazole every morning, which I now think may have contributed to my tsh going to 35.1. (I stopped that when I went up to 90).

I am going to get tested again at 4 weeks. My concern is that the fluttering/palpitations can develop into AFIB. Maybe 75 mg is enough? Has anyone had this happen and body adjusted on its own?

Thank you for reading,

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DJ3271
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SlowDragon profile image
SlowDragonAdministrator

are you splitting Armour as 2 or 3 smaller doses spread through the day

ESSENTIAL to test vitamin D, folate, ferritin and B12

What vitamin supplements are you currently taking

When were vitamin levels last tested

Omeprazole lowers vitamin levels

Do you wear a fitness watch

You can get one that does ECG on demand

Can be helpful

Ectopic heart beat can also cause flutter or awareness of heart beat

Apple Watch or Fitbit both offer ECG options

DJ3271 profile image
DJ3271 in reply to SlowDragon

Slowdragon, Thank you for responding. I was splitting it, but it was crumbling. Also, when I took it near bed time it made me wired and I could not sleep. My B12, Iron and D3 are great. I just got them tested. I've been through the cardiac wringer and told it was neurological. This is just uncomfortable and annoying. Do you think i will adjust? I can't imagine 90 mg is too high. I am a small person if that matters.

SlowDragon profile image
SlowDragonAdministrator in reply to DJ3271

some people can’t tolerate NDT as it has relatively high levels of T3 in it

You might need to lower NDT and add some levothyroxine

Or try levothyroxine plus small (split dose) T3 alongside

Only change one thing at a time

Wait 6-8 weeks then retest TSH, Ft4 and Ft3

Day before test split T3 or NDT so that last dose is approx 8-12 hours before test

Last dose levothyroxine 24 hours before test

DJ3271 profile image
DJ3271 in reply to SlowDragon

Thanks. My cardiologist mentioned the T3 on the heart.

Sounds like a good plan. I am just afraid to go back to the Levo because of all the chest pain it caused.... perhaps that was just my body adjusting and I can go back now? I had my thyroid out 7 months ago. Did 3 months on Levo... Chest pain.... 3 on Armour 60 - perfect - but went hypo. 3 weeks on 90 mg and heart fluttering.... ugh.... I need this to be right!!!

FancyPants54 profile image
FancyPants54 in reply to DJ3271

Have you managed to get your dose right and feel good on NDT?

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