Hi
@Mary -- I'd never heard anything like this before. I take Armour Thyroid for hypothyroidism, and I sometimes wonder if I'm taking too much, though my TSH levels stay pretty steady. Is it possible my thyroid function can flip for a day or more, and then revert back to "baseline"? I'd be interested in anything more you might be able to add to your experience(s). -- Thanks so much!
Hi
@Wayne - I was going to send you a PM as I did not want to derail this thread but just realized it's your thread

so will answer you here -
Ok - my conclusions about my thyroid becoming a bit hyper, switching as it were, are based on empirical experience and not lab work for reasons I'll explain. As I mentioned above, several different things cause insomnia for me, and I neglected to mention one of the biggest culprits, MSG at dinner in any of its iterations (
https://www.truthinlabeling.org/names.html)
So when I am hit with a seemingly inexplicable inability to sleep, apparently out of the blue, I have to run through all the things I listed above. Did I eat the wrong thing, etc. Is the insomnia the first half of the night or the second half, or both - these can all indicate different things. Is my cortisol high again (which happens), etc.
About 2-1/2 years ago I was hit with a very severe insomnia that nothing would touch and was not typical for any of the above things - I was awake almost the entire night. Also, I was getting hot at night (not a hot flash), lost some hair, and even lost a few pounds and so my thyroid came to mind. I did not want to wait to make an appointment with my doctor, then get an order for lab work, etc. and maybe take 2 weeks altogether to see what my thyroid was like - the insomnia was too bad, I could not have handled 2 weeks of it. So I went on the assumption that somehow my thyroid had switched to hyper - read about it and saw there wasn't much mainstream medicine could safely do for something like this - I won't go into detail here. so I looked up herbs etc that might help. I found
Thyroid Calming by HerbPharm which seems to be a very good product, and also plain lemon balm can help a little. I think I stopped my thyroid med altogether for several days, started the Thyroid Calming and sure enough, I started sleeping better. After several days I restarted my thyroid med.
One other surprising thing I found that might help was l-carnitine, which is an antagonist of thyroid hormone action:
https://pubmed.ncbi.nlm.nih.gov/15591013/ So I started taking l-carnitine too, which I had taken in the past.
It's a guessing game doing this on my own but I can't run to the doctor each time I get bad insomnia. They can't help. Overall I still do need my thyroid med and I do get blood work done. The last time it was checked was a few months ago, my TSH was okay. But last week out of the blue I had a very bad night - awake basically the entire night. It's hard to think when that happens. I thought it might have to do wtih my calcium (it's complicated) and the next night got 2 hours. Finally I think the 3rd night I thought of my thyroid and started the Thyroid Calming tincture, etc. and finally started to sleep again, though it's been a rocky road to get there. It's insane - it sometimes seems my body wants to do whatever it can to NOT sleep. And the ironic part was I'd had a very good night's sleep just one or 2 nights before I was suddenly awake all night. Go figure!
I hope this explains what I do - I know it's not ideal. Ideally I could get needed blood work within a day. Ideally doctors would be knowledgeable about all the variables involved with insomnia. But none of that is true. Ideally doctors would know how to calm down an overactive thyroid without hitting it with radiation etc. But they don't.
What makes you think you might be taking too much Armour thyroid? Also, fwiw, I'm now taking 60 mg of NP thyroid (very similar to Armour). Originally when I first started taking Armour some 20+ years ago, I was on 120 mg, so over the years my dose has gradually decreased. It is best to take the lowest necessary dose.