So we can offer better advice, can you tell us more about your thyroid condition, eg when you were diagnosed, plus reference ranges for the tests provided (as these can vary between laboratories)
Have you had any thyroid antibody tests? This would show if your thyroid condition is auto immune.
Have you any other key vitamin tests (ie ferritin and folate in addition to vitamins D and B12 provided)?
Hi I'm living in Spain and I just took those results from my rheumatology appointment so I not sure about the reference ranges. I have to try and translate the results.I was diagnosed over 15 years ago with underactive thyroid. Mostly I took 150 mg daily but they put it up to 200 mg a while ago.I also have lupus, Sjrogrens and vitiligo.
We really need to see lab ranges for FT3 and FT4 to provide better advice re medication.
I wouldn’t reduce by 50mcg in one go. Maybe look to reduce by 25mcg (if this doesn’t aggregate adverse symptoms). I personally like to adjust super slowly (ie 12.5mcg) as I find changing my dose in larger increments causes me increased anxiety.
I'm so sorry your not feeling feeling well. It's not fun by any means. Personally lowering or raising thyroid dose by large amount and 50mcg is a very large dose to lower on one go. Many lower by 12.5mcg and the most 25mcg at a time. You stay on it for 6-8 weeks. Give you body time to acclimate to the changes. You might find that lowering the dose just by 12.5mcg can really make a huge difference. By going with big changes you might be over shooting your "Optimal". Slow and Steady wins the race.
You might also try to see and check your Vitamin D/K2, Iron/Ferritin, B-12/Folate. These nutrients are components to help our thyroid hormones to work better for us.
Elevated MCV (I assume - top end usually around 98) suggests low folate and/or B12.
There are other possibilities but these are the most common.
Although a B12 level of 267 might be in the reference interval, it is not unusual to need it to be higher. You could try taking an ordinary B12 supplement - 500 or 1000 micrograms and most people seem to prefer methylcobalamin.
A lower dose, such as 50, might be all you need, but a higher dose really isn't going to be a problem.
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