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Thyroid UK
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Its my 3 post here and you r vey helpful

Someone here with hashimoto had symptoms like your muscle jump .

I think its called bfs syndrome. Its happen somtimes in my hand somtime in my feet

This is normal symptom of hashimoto?

10 Replies

It is quite common. I don't know much about it, but a common cause is deficiency of various nutrients.

Low magnesium is common, and this can be fixed with magnesium supplements. There are lots of different ways of supplementing magnesium, some of them good, some of them useless. For info, read these links :



The usual dose required for magnesium is roughly 300mg - 350mg per day. It makes some people sleepy, so take it in the evening. Some types of supplement can also act as a laxative in some people, so avoid those if this is a problem.

You need to have moderately healthy kidneys when taking magnesium supplements. Don't take them if your kidney function is poor.

Another possibility is low iron. But taking iron supplements is not a good idea without knowing that you need them, because taking it when you don't need it is poisonous. So blood tests for iron and ferritin (or preferably a full iron panel) are essential before deciding whether supplementing iron is a good idea.


Thank u for your answer

My ferritin is 75 and iron in the middle of the scale

Magnesium i not check my gp not "thrilled" to send me


As long as your kidneys are in reasonably good order and you don't take massive amounts of magnesium there is no danger that I know of in trying it out.

Blood tests for magnesium are very unreliable. Only about 1% of the magnesium in the body is in the bloodstream, and if you start to run low on it then your body moves it into your bloodstream. So you can have apparently healthy amounts of magnesium in your blood stream but be very deficient in the cells of the body.

I've had one magnesium test done years ago. I wouldn't bother getting it tested again, at least while my kidney function is reasonably good.


I have also high blood calcium 10.8 so endo send me to test urine 24h and all the test calcium potassium are good

Only creatine is 2.1 (scale 1-2)

Its mean my kidney is fine?


Are you taking high dose vitamin D? This can cause high calcium

If not, then get parathyroid levels tested



I not take vitamin d at all

My vitamin d is 28

I ckeck parathyroid (pth 32)

I affraid to take vitamin d supplement beacuse my blood calcium


Sorry don't know if that parathyroid result is high or low

See GP to discuss

Is your vitamin D low?


Parathyroid is ok 32 (10-60)

Is my vitamin d low 28 (30-90)


If vitamin D is low and calcium is high then you need investigation for parathyroid tumour

Have you had calcium retested if it's still high ask for referral to parathyroid specialists


From this link

IMPORTANT: If your blood calcium is high and your blood vitamin D is LOW, then you have a parathyroid tumor. This is one of the most confusing things for doctors to understand. Some uninformed doctors will see that your calcium is high and your vitamin D is low and they will prescribe a high dosage of vitamin D "to help make the calcium go down". We have an entire page of this website dedicated to this one topic, but allow us to summarize it here in one absolute, very clear sentence: If you have a high blood calcium and your vitamin D level is low, then near 100% you have a parathyroid tumor in your neck that is the cause of the high blood calcium and this tumor must be removed. Giving Vitamin D to a patient with high blood calcium can be dangerous and shows that the doctor doesn't understand parathyroid disease very well. See our page on "Low Vitamin D with High Blood Calcium".


Suggest you ask on Parathyroid healthunlocked



I cant ask in this group

And all the article you gave not say what to do if calcium is high vitamin d low and pth is ok


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