do you think it is possible to be under medicated for thyroid and have one's BP increase by about15 points, it was always super low but since i had covid in 2023 it has been askew ? thank you
hello and thanks in advance to this great forum. - Thyroid UK
hello and thanks in advance to this great forum.



Blood pressure can vary for many reasons. What are your readings like?
Do you have a copy of your latest blood results that you can share with us? You are legally entitled to a printed copy of your results, ask at GP reception. In England you can get the NHS app and ask for permission to see your blood results on that by asking at GP’s reception.
When hypo we get low stomach acid which means we cannot absorb vitamins well from our food, regardless of a great diet. For thyroid hormone to work well we need OPTIMAL levels of vitamins.
Have you recently or could you ask your GP to test levels of ferritin, folate, B12 & D3? Private tests are available, see link for companies offering private blood tests & discount codes, some offer a blood draw service at an extra cost. thyroiduk.org/testing/priva...
There is also a new company offering walk in& mail order blood tests in London, Kent, Sussex & Surrey areas. Check to see if there is a blood test company near you. onedaytests.com/products/ul...
Only do private tests on a Monday or Tuesday to avoid postal delays.
High blood pressure can be a hypo symptom, just like low blood pressure. So, yes, being under-medicated can cause it.
Hypothyroidism is linked to high blood pressure.
If you do not get sufficient thyroid hormones, your heart rate can slow, which makes it harder to pump blood around your body. Low thyroid hormones can also make the arteries less elastic and this can lead to increased peripheral resistance and in turn can cause an increase in blood pressure.
Correcting low thyroid hormones will improve these factors and can help to normalise blood pressure, therefore it is important to be on an optimal replacement regimen.