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Thyroid UK
91,973 members106,229 posts

Terrible cold virus...... Erfa not working?

I'm in the middle of the cold virus from hell! Green grunge everywhere.... ( sorry! )

It seems to have affected my uptake of ERFA because I've been feeling awfully anxious again and I can only think that the my levels must have gone a bit squiffy? Has anybody else found this when they've been fighting a virus?

Merry xmas to you all too.


3 Replies


Sorry you had no replies - hopefully someone with relevant knowledge will pick this up from Latest Activity...




I have a feeling that, even in healthy people, thyroid hormone production and conversion decreases when people are ill. Presumably for people who are on thyroid medication there might be a reduction in uptake of that medication, and a reduction in conversion from T4 to T3. If I'm right then you might be suffering, temporarily, from T4 and/or T3 pooling in your blood stream a little bit. Once you get better you will probably go back to normal fairly quickly.


Thank you so much for your reply. That makes sense. Xx


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