I did a blood test back in late August for various symptoms such as high heart rate, nausea, lightheaded, heart palpitations, as well as chest pain. I was sure it was hyperthyroidism, as I have history of this back in 2018. I also have history of hypothyroidism in 2021 during pregnancy only with zero symptoms.
My blood test for thyroid shows TSH at 4.75 mU/L and t4 is 14pmol/L. My GP didn’t test t3 or antibodies. He said he will order a retest in 3-6 months. Another GP ordered a 24 hour ecg that showed tachycardia and some sinus tachycardia, in an otherwise healthy heart. Referral to a cardiologist upon my request.
I don’t know what to make of this as my symptoms showed hyperthyroidism however my blood test showed as subclinical hypothyroidism. I am so confused. My symptoms have been debilitating and I am experience near fainting episodes and have fainted once. The random high heart rate really affects me. My vitamin levels are all within normal range but on the lower end of normal for vitamin D, ferritin is at 37 and folic acid at 6.9. B12 is on the higher end.
Any insight would be appreciated
Written by
Duckeggs
To view profiles and participate in discussions please or .
Igennus B complex popular option. Nice small tablets. Most people only find they need one per day. But a few people find it’s not high enough dose and may need separate methyl folate couple times a week
Thorne Basic B recommended vitamin B complex that contains folate, but they are large capsules. (You can tip powder out if can’t swallow capsule) Thorne can be difficult to find at reasonable price, should be around £20-£25. iherb.com often have in stock. Or try ebay
IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 5-7 days before ALL BLOOD TESTS , as biotin can falsely affect test results
In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate folate supplement (eg Jarrow methyl folate 400mcg)
Post discussing how biotin can affect test results
Hi, thanks for getting back. I don’t know what to make of the mismatched symptoms and wondering if anyone else experienced my symptoms with hypothyroidism?
In response to your questions. My vitamin d level was at 50. So I think it’s literally on the border. I started supplementing with 2,000 iu in the past two weeks on my own.
Everything else seems fine with my vitamin levels so I’ve not been supplementing.
GP didn’t prescribe any levothyroxine for the sibclinical hypothyroidism. Is that something I should request?
Serum ferritin level is the biochemical test, which most reliably correlates with relative total body iron stores. In all people, a serum ferritin level of less than 30 micrograms/L confirms the diagnosis of iron deficiency
Never supplement iron without doing full iron panel test for anaemia first and retest 3-4 times a year if self supplementing.
It’s possible to have low ferritin but high iron
Test early morning, only water to drink between waking and test. Avoid high iron rich dinner night before test
If taking any iron supplements stop 5-7 days before testing
Eating iron rich foods like liver or liver pate once a week plus other red meat, pumpkin seeds and dark chocolate, plus daily orange juice or other vitamin C rich drink can help improve iron absorption
This is interesting because I have noticed that many patients with Hashimoto’s disease and hypothyroidism, start to feel worse when their ferritin drops below 80 and usually there is hair loss when it drops below 50.
Get FULL thyroid and vitamin retest 6-8 weeks after adding last vitamin supplement
Recommended that all thyroid blood tests early morning, ideally just before 9am, only drink water between waking and test
This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)
Private tests are available as NHS currently rarely tests Ft3, both antibodies or all relevant vitamins
Do you have the ranges for your blood test results? You could put them into the thyroid calculator I wrote, at thyroid.chingkerrs.online/ and see the percentage through ranges (the ranges vary by lab so percentages are often more meaningful).
Hopefully it's quite self explanatory and it has a little bit of help information on the page. You basically type the blood test and minimum and maximum values from the range and it displays the percentage through the range. Then you press the "Copy Results" button and paste the text into your post here on HealthUnlocked. There are rows for the common thyroid and vitamins that the admins here like. Have a go!
I'd be happy to hear if you have any feedback on how I could make it easier to use!
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.