Thyroid UK
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Low Iron

Hello, I was wondering whether anyone could give me some advice...

I am 44 years old and I am a coeliac. I have an underactive thyroid and I have been on Thyroxine for over a year now (75mg). I am also taking iron tablets as I have a low blood count. I have been having horrific symptoms which seem to be the symptoms of an overactive thyroid, is this common as my doctor said this isn't possible? I have also lost a lot of weight and the doctor is accusing me of not eating which is extremely infuriating!

My symptoms appear to get worse closer to my period where I am losing large amounts of blood (only started to happen since Ive been taking the thyroxine). I have also been feeling sick, having heart palpitations, losing consciousness, internal tremors, passing out, having difficulty breathing, feeling extremely exhausted but unable to sleep etc... Is anyone experiencing this while on this medication?

2 Replies

Have you had vitamin D, B12, folate checked.

Vitamin D especially can be low in coeliac. Are you taking any supplements? If so how much

Magnesium can be low too

Lots of info on goggle

Goggle low magnesium & coeliac - Low vitamin d & coeliac

Your thyroxine can not work in cells without good levels of magnesium, Vit D , folate, ferritin and B12

If you can not get GP to check these by blood tests, then like many of us, you can get them done privately

Blue Horizon - Thyroid plus eleven tests all these.

This is an easy to do fingerprick test you do at home, post back and they email results to you couple of days later.

Usual advice on this test, (home one or on NHS) is to do early in morning, ideally before 9am. No food or drink beforehand (other than water) don't take Levo in 24 hours before (take straight after). This way your tests are always consistent, and it will show highest TSH, and as this is mainly all the medics decide dose on, best idea is to keep result as high as possible.

Vitamin and minerals levels are very important, but standard NHS thinking, doesn't at the moment seem to recognise this. You will see, time and time again on here lots of information and advice about importance of good levels of B12, folate, ferritin and vitamin D and gluten too....but obviously you are already gluten free


Thank you so much! Lots of great information here that I wasn't aware of.

Thank you for the links! Really helpful!


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