Could Anxiety, Fatigue or Depression After Pregnancy Be Your Thyroid?

I didn’t know this, so I sort of assume if I don’t know about something, many of you won’t, so I share it in case!

Post-partum thyroiditis is defined as inflammation of the thyroid within the first year after giving birth. This is driven by the immune system, which was naturally suppressed during pregnancy, rebounding after birth and mistakenly attacking the thyroid.


Post-partum thyroiditis generally consists of two distinct stages:


Stage 1: Hyperthyroidism (typically occurs 1-4 months after giving birth). During this phase, the thyroid produces high levels of free thyroid hormones, free T3 and free T4. This can lead to symptoms such as anxiety, palpitations, weight loss, increased sweating, and irritability. 


Stage 2: Hypothyroidism (usually occurs 4-8 months post-partum). In this stage, the thyroid becomes underactive; free thyroid hormone levels drop and TSH increases in an attempt to stimulate the thyroid. Symptoms of this stage include fatigue, weight gain, dry skin, depression, and cold intolerance. 


For most women, post-partum thyroiditis resolves on its own within 12-18 months after childbirth without requiring long-term treatment. 


That being said, some women may develop chronic hypothyroidism or even Hashimoto’s and require ongoing thyroid hormone replacement therapy. 

Karen from Mineral Check (I have their hair tests on the shop here)

So, the thyroid goes up and then down, it seems. Watch out for any of those symptoms in yourself or family members after having babies. Could anxiety, irritability, depression or fatigue be being put down to other issues and no-one is looking at the thyroid? Quite possibly.

Might it also be because the baby nicks all your nutrients and so many of the thyroid nutrients go a bit low? Karen reminds us that:

Minerals such as selenium, zinc, magnesium and iodine are also essential for adequate thyroid function.

Very true. Useful info, I thought. Nutrient Tests here. Thyroid tests here if you need them and Thyroid factsheet in the A-Z is here.

2 Replies to “Could Anxiety, Fatigue or Depression After Pregnancy Be Your Thyroid?”

  1. This was exactly the pattern of my daughter inlaw following the birth of our grandson. Immediate Hyper then Hypo, depression and fatigue. Although on meds and the antibody situation has not resolved so seemingly full blown Hashimotos
    I was wondering if had an undetected Thyroid condition before pregnancy. I have heard information from Functional medical practitioners that all women planning to become pregnant should be tested for thyroid efficiency before pregnancy saving a lot of ill health
    Thanks for this article and raising awareness x

  2. Oh that sounds horrid for you all, Lynne. Yes, I knew thyroid messed about in pregnancy but that’s a really good point about checking it before conception. I have found some people have become autoimmune afterwards because they suddenly develop a gluten issue. I wonder if that might be a factor if her autoimmune antibodies aren’t dropping – take some pressure off the system. Also check Vitamin D levels, of course. https://purehealthclinic.co.uk/vitamin-d/

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