OK, so you have a conversion problem. Your FT4 is at the top of the range, but your FT3 is a tad under mid-range.
So…
… it's all very well saying that your thyroxine is too high, but if you reduce it, the FT3 will go down, and you will get worse - it's low T3 that causes symptoms. So, if you reduce your dose, you will need some T3 to replace it.
… are you free of symptoms? Even if you are, testing in three months probably won't change anything unless something is done to improve your conversion. For that, you might want to increase your B12 and folate, a little. Your vit D is good. Have you had your ferritin tested? Your iron is low, but you do need to see your ferritin. Are you on a low-calorie diet?
… you're not likely to have an over-active thyroid (that was a pretty silly thing to say) because your thyroid is under-active, and you are taking levo. You could be over-medicated, but you're not because your FT3 is under mid-range.
… a bone density scan? Always interesting to have one, but if he's suggesting that you have osteoporosis because your TSH is low, then he's barking completely up the wrong tree. TSH is nothing to do with bones.
Finally, it's unlikely that you have Hashi's, because your antibodies are low. But, people have been known to have Hashi's without having high antibodies. So, we can't say anything for certain, there.
Be careful with low-calorie diets because you need calories to convert - along with everything else. And, you do have poor conversion, there, so perhaps you aren't eating enough.
Been vegetarian for a few years but ate meat recently as my health is paramount. However hard to find purely grass fed meat and chickens eat corn/grain so stopped it.
Thank you for your help. Can I ask what action you think I should take.
What I think and what is possible are possibly two different things.
You need to raise your ferritin by some means, and they say that the best way is to eat liver once a week. Not ideal for a vegetarian.
You need to reduce your FT4 and raise your FT3. And, maybe increasing your ferritin will help with that. Also, have you tried selenium? Perhaps increasing your calorie intake will help. But, if all else fails, the only thing you can do is get T3/liothyronine prescribed (difficult) or procure your own on-line (increasingly difficult).
Those are the things you need to do to feel well. How much you are prepared/able to do is entirely up to you.
I don't think dementia comes on over-night. There will be warning signs. At which point, you check your labs and make sure your FT3 is in the right place. However, it is low at the moment, so if you're that worried about it, you should do something about your FT3.
B vitamins best taken in the morning after breakfast
Recommended brands on here are Igennus Super B complex. (Often only need one tablet per day, not two). Or Jarrow B-right
If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 7 days before any blood tests, as biotin can falsely affect test results
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.