Your TSH is low because you are taking T3. Even if your pituitary was in full working order it would be low because that's what T3 does. It doesn't matter.
Your FT4 is low because you are taking T3. Whether or not that is a problem only you can tell. T4 needs are very personal things.
But, as you left too long a gap between your last dose of T3 and the blood draw - should only be 8 to 12 hours - your FT3 is showing a false 'low' result. Could be that your true level is over-range, even. So, that test doesn't really show you anything much that is useful, I'm afraid.
I suspect that T3 tablets the NHS prescribe are tiny to reduce the chances that people will split them. It will be a money-making scheme by Big Pharma.
I use a scalpel to cut my T3. They can be bought with spare blades from Amazon and they aren't very expensive. If you don't want to buy from Amazon then hobby and craft shops might sell scalpels as well.
I've also tried several pill cutters of the type you can buy from pharmacists and from Amazon but I've found that the blades on those sometimes go rusty very quickly and the cutter has to be thrown away. Some of them go blunt very quickly even if they don't rust. But if you find a good pill cutter then make note of the maker so you can buy another one when needed.
Hormones secreted from the pituitary gland help to control growth, blood pressure, energy management, all functions of the sex organs, thyroid gland, metabolism, as well as some aspects of pregnancy, childbirth, breastfeeding, water/salt concentration at the kidneys, temperature regulation, and pain relief.
It is possible that you need to take more of the hormones from the pituitary than you are currently taking. Have you been given tests of all the hormones produced by the pituitary? As someone who is not a doctor it seems logical to me that all of the pituitary hormones should be tested regularly (e.g. yearly?) in someone with your hormone problems but I'd bet they aren't. I don't think doctors are very good at logic.
I am secondary from pituitary failure I am on prednisolone. I am
On higher dose than I should be due to constant infections, I divide every 6 hours after trial and error.
I have had a day curve I should be on less I am aiming for 5 mg but due to infections I am on between 7.5-10 but I am trying so hard to lower unsuccessfully.
I am supplementing with DHEA, it was undetectable as was testosterone but has improved.
I don’t take FLUROCORTISONE as not primary.
I am pretty clued up on the adrenal insufficiency just need advice on the thyroid as still learning.
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