Increased heart rate after eating

[ade1961]

Hi, I currently take 175mcg levo. I noticed at about the 150mcg stage that following a meal my heart rate would rise to around 96-100 bpm and this continues. My heart rate at rest is around 70-80bpm. The increase lasts for an hour or so and returns to normal. It's not a big problem but it can make me hot and sweat a little. My question is, have others experienced this and could it be considered a marker of over-replacement, under-replacement or neither ?. It did not happen before treatment. Thanks all.

[humanbean]

This happens to me under certain circumstances.

I've discovered that it happens if I eat a meal or a treat/snack which is high in sugar. I suspect I am on my way to developing type 2 diabetes.

I just need to learn that ice cream is gonna kill me if I don't get a grip on my eating habits!

[SlowDragon Administrator]

Suggest you retest full thyroid and vitamin levels .....especially before considering adding T3

See exactly what’s happening

Have you ever had ultrasound scan of thyroid?

I reread your previous posts that you appear to not have high thyroid antibodies

For full Thyroid evaluation you need TSH, FT4 and FT3 tested. Also EXTREMELY important to regularly test vitamin D, folate, ferritin and B12

Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water .

Last dose of Levothyroxine 24 hours prior to blood test. (taking delayed dose immediately after blood draw).

This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)

If/when also on T3, make sure to take last third or quarter of daily dose 8-12 hours prior to test, even if this means adjusting time or splitting of dose day before test

Is this how you do your tests?

Private tests are available as NHS currently rarely tests Ft3 or thyroid antibodies or all relevant vitamins

List of private testing options

thyroiduk.org/getting-a-dia...

Medichecks Thyroid plus antibodies and vitamins

medichecks.com/products/adv...

Thriva Thyroid plus antibodies and vitamins By DIY fingerpick test

thriva.co/tests/thyroid-test

Thriva also offer just vitamin testing

Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins by DIY fingerprick test

bluehorizonbloodtests.co.uk...

If you can get GP to test vitamins and antibodies then cheapest option for just TSH, FT4 and FT3

£29 (via NHS private service ) and 10% off down to £26.10 if go on thyroid uk for code

thyroiduk.org/getting-a-dia...

monitormyhealth.org.uk/thyr...

[SeasideSusie Remembering]

ade1961

Eating a meal can increase blood pressure, it can also increase heart rate, this is because eating causes changes in blood flow.

I used to own a restaurant and some people who had a high meat content meal such as a steak would often sweat quite profusely and go red.

This article might be helpful:

healthline.com/health/heart...

[m7-cola in reply to SeasideSusie]

Thanks for posting this. I found it most interesting and helpful.

[SeasideSusie Remembering in reply to m7-cola]

Oh I'm glad you've found it helpful. I recently found out about eating raising BP because I had to buy a new BP monitor and in the instruction leaflet it mentioned not to do a reading after a meal due to it would be higher then.

[jrbarnes]

I've been having this for quite some time but it went away when I tried NDT. I suspect it has something to do with my blood sugar and low T3 levels but I can't say with certainty.