I think the doctor is right. The whole endocrine system is interdependent, so changes in her thyroid hormone levels could cause big changes elsewhere. Low libido is a symptom of hypo. Is that because low thyroid hormone levels reduce testosterone? I don't know.
I understand you are still waiting on FT4, but it's almost certain she needs an increase.
I agree with goolarra about low libido being one symptom of hypothyroidism. Also, there are numerous studies and reports of hypothyroidism causing low testosterone.
Ft4 and TSH came in.
FT4 =0.63. (0.78-2.19)
FT3 2.77 (2.77-5.24)
She is taking Armour. 60 mg AM and 30 mg PM
Woefully inadequate levels of Free T3 and Free T4. She needs to discuss with her doctor getting a med increase of about 1/2 grain and a re-test in 4-5 weeks. No wonder she does not feel well. At least the TSH is high, so the doctor won't be erroneously inclined to refuse an increase.
My wife really doesn't feel bad. But she has no idea what "normal" is after suffering hypo for more than 10 years. I frankly do not believe she knows what feeling good really is like.
I personally don't understand what is going on. Her FT3 levels are dropping even with increasing Armour dose. As well as her TSH is rising. Her fr4 levels are continuing to drop. She has been on Armour since Bout mid July. So the t4 from her Levo should have been gone LONG ago.
I still believe that in the end my wife will be on both Armour and additional T4. So an increase is definately needed.
Her Dr is not too concerned about TSH and expects it to be suppressed. Frankly I cannot believe that her TSH is not suppressed already. In the past when my wife was on combo t4 of 150mcg and 15mcg of T3 she got suppressed TSH as soon as the chromed was added.
So with 1.5 grains of Armour I would have for sure thought her TSH would be suppressed.
That 1.5 grains of Armour is a lot less than the 150 of T4 with 15 mcg of T3. The 1.5 grains is only about 58 mcg of T4 and 13.5 of T3. That is a big drop in T4, and T4 also affects TSH.
Her Dr today asked my wife if she wanted an increase in her Armour. And my wife told him YES.
So now we just have to wait to see what the amount of the increase is. My guess would be half grain in the afternoon. But maybe he will increase above this. As the last increase was from 0.5 grain a day to 1.5 grains a full 1 grain increase.
Also looking back, my wife was previously onl 137 mcg T4 and only 7.5 mcg T3. and her TSH was suppressed.
Still it is a large T4 cut. Which is why I still think she will end up with some T4 medication to help get her up into the range a little more.