So, following on from my first post (https://healthunlocked.com/thyroiduk/posts/132357768/where-do-we-go-from-here...) My partner had a the results back on her extended thyroid blood tests. Despite specifically asking to test FT3 & FT4 we were horrified after waiting so long to find that they had only tested Serum Folate and Vit B12 (and TSH again!).
Serum Folate level was 9.2 ng/ml
Vit B12 level was 203 pg/ml
The nurse said these were 'normal' but after trying to find out more about the range of these tests it sounds like the bottom of the range is 200 pg/ml for B12. Obviously I'm not a doctor, but it sounds like she is pretty close to being deficient in B12. We haven't arranged a follow up appointment yet with the doctor to discuss as we want to be as informed as we can to avoid him trying to palming us off with anti-depressants again.
The symptoms of B12 deficiency seem fairly similar to those of hypothyroidism, so I wondered if anyone had any experience in taking B12 supplements and what effect, if any this had?
Thanks as always for everyone's help on this.