Hi Christine, what you’re experiencing is typical and can be expected given the components of the meds.
Your T4 doesn’t go up because NDT are from pigs (porcine), which have much higher ratio of T3:T4 than humans. So to get your T4 in the center of the range, your T3 will be very high.
The accepted belief is that T3 levels are the determinant for controlling the pituitary’s output of TSH. So with NDTs, you would expect to get lower TSH levels “faster”. However, it was my experience that both NDT and levothyroxin caused my TSH to go very low.
If you go with the levothyroxin, it’s synthetic and causes other problems, but it contains only T4, so then you’re low on T3. So you have the opposite problems as with NDT, but with more side effects. T4 only is preferred between the two by doctors because it’s believed that (high) T4 is less likely to cause heart problems than (high) T3. However, from the many posts here, it’s a tossup as to which has worse side effects on the heart.
The T3:T4 ratios are very important and when they vary from naturally occurring ratios, you have problems, anxiety and other side effects.
So there’s basically no way any of this stuff (prescription medication) works. If you take a low dose, you don’t swing your natural ratios as much. However, if you REALLY need meds due to advanced disease, the higher dose results in worse imbalances. I think the folks on low doses could probably get by without it, the folks on high doses are destined for severe side effects.
Some people have gotten relief from these meds. I found the NDTs to be very helpful but the dose kept going wonky. The Levo had horrible side effects and didn’t work at any dose.
Both Armour and Naturethroud contain additives- cornstarch, lactose, dyes, etc. which can worsen immune system problems.
One of the known side effects of Levo is fibromialgya.
You could try ThyroGold, as it’s from cows and has better (T3:T4) ratios, and is natural. I’ve gotten some relief from essential amino acid complex. Both of these are non prescription solutions.