My doc started me on Armour behind a secondary hypothyroid pattern in my labs. My tsh was low at less than .75, my FT4 was ~20% in range and my FT3 at ~50%. I went from 1/2 grain to 1 grain and have been there for 8 months. My tsh is suppressed at .02, my FT4 is up to 40% in range and FT3 is 53% in range. He will not increase because my tsh is suppressed - but he's keeping me on that dose despite the suppressed tsh so I see that as a win since other docs would likely yank me off it. I am aware that Armour suppresses tsh. My question is have others continued to get dose increases even once their tsh becomes suppressed? It's as if this doc thinks once suppression happens, that is the right dose.
I still don't feel well even after correcting for low ferritin, low Vit-d and low B-12. I'm constipated, chronically fatigued, brain fog from hell and bloated. I guess two good things is my hair has stopped falling out and I'm not freezing all the time like before (although it is summer).
Also, I go in an out of having these terrible horizontal ridges on my fingernails and toenails. Is this thyroid related???
Yes, I continued to get increases after TSH became suppressed. It took about 6 1/2 months after I started Armour for the TSH to be flagged low. At that point, I was taking 60 mgs. Both the FTs were well below mid-range, and I still had multiple symptoms. I won increases to 90 mgs, 120 mgs, and 150 mgs. 150 proved to be too much; I felt hyper on that. I went back to 120 and have been on that ever since. My FT4 is about 40% of its range; the FT3 is between 70 and 75%. TSH has never been higher than .02 in the past 3 1/2 years or so. That's fine by my doc, because the FTs aren't excessive.
The nail ridges could be from hormone fluctuation. If so, they might disappear once your levels have stabilized.