What TSH level is too low on NDT + low sodium

[Juliet_22]

Hi All,

I switched to NDT 6 weeks ago and have been dialing in my dose. I take Erfa NDT.

I raised it up to 1 3/4 tablets, and have just tested my thyroid.

I've read a lot of discussions here about NDT and TSH and from what I understand, from this big study when TSH gets lower than 0.3, it increases the risks of osteoporosis, fracture and cardiovascular diseaseacademic.oup.com/jcem/artic...

My new TSH result was 0.017.

T4 is 47% of the range, T3 is 70% of the range.

Tested it all at 9am fasted, left over 24 hours in between doses. I supplement with B12, D, folate, iron.

So TSH looks too suppressed. Should I lower NDT to 1,5 grains?

Should I aim to see my TSH at 0.4 and not lower than that?

My BP, temperature and pulse have been fine. But I have been feeling nauseous and weird.

Since all my thyroid issues kicked in, I noticed I'm low on sodium. My recent level was 136, and the norm is 137-145.

I tested my 9am cortisol, levels came at 419 a month ago, I've read studies that say above 414 excludes adrenal insufficiency. I'm not sure if I should do further adrenal function tests with my normal cortisol levels. Also, I am abroad atm, cannot test my adrenal saliva here.

I'll be adding more salt to my diet now and drinking a bit less water. Also taking even more iron pills.

Do you know how much salt can I safely add a day to raise my levels, without causing issues?

If you know of any other tests I need to do, or supplements to take to raise my low sodium and maintain it at a healthy level, I would appreciate your advice.

Thank you, thank you!

[pennyannie]

Hey there again :

Looks like the NDT is working well - how are you feeling - as that's the most important question ?

My TSH is stuck down at 0.01 for me to be well and I'm not concerned and prefer to go with how I feel after a couple of years of being undermedicated and with ' no life ' because my TSH didn't know how to follow the guidelines and rules.

I'm with Graves post RAI thyroid ablation.

[Juliet_22 in reply to pennyannie]

So glad to hear you dialed it in! Been not feeling great, nausea and fatigue, heart been feeling a bit tight too, a bit of anxiety. Probably could do with decreasing to 1,5 to see how that goes, at least I know I'm definitely not hypo now!

Waiting for my thyroid antibodies results to see where they are at.

[pennyannie in reply to Juliet_22]

Well you look to be going the right way -

What were your bench mark T3 and T4 readings ?

and where are your T3 and T4 readings now - and presume these to be around 6 - 8 weeks into taking the same daily dose of Efra ?