miscarriage after thyroidectomy

[my2eyes]

A thyroid issue was discovered when my youngest child (he's now 7) was a few months old.  Two years later, discovered papillary cancer and had a complete thyroidectomy.  It's now been almost three years and am under constant contact with endo to monitor meds.  Just had third miscarriage in less than year.  Is this common?  Dr  makes me feel uptight about it, and says check bloodwork in another month, but I don't get to the next month (two misses were about 7 weeks, one at 13 weeks).  Any suggestions?
TSH and Thyroglobulin <.2  , free T4 2.3,
Thank you .

[goolarra]

So, your symptoms are not really definitive, either.  They seem a little of each, hypo and hyper.  Sometimes when FT4 is high and FT3 is low, the symptoms are kind of mixed.  FT3 could tell the story...

[my2eyes]

I am always tired, but don't sleep an excessive amount.  I did gain a lot of weight (30 in yr) before the thyroidectomy, and can't get rid of it, but not continuing to gain.  I am frequently intolerant of the temperature, but to both extremes.  Sometimed freezing, sometimes sweating.  

[goolarra]

I think it's imperative that you have FT3 tested, with a repeat of TSH and FT4.  TSH and FT4 both indicate that you are overmedicated.  However, cells cannot use FT4 directly.  It first has to be converted to T3.  Some people convert slowly and, even with high FT4 levels, are still hypo because not enough T3 is converted.

Insomnia or excessive sleep requirements?  Weight gain or loss?  Increased or decreased BP and/or HR?  Hand tremors?  Heat or cold intolerance?    

[my2eyes]

Thanks for taking the time to respond.  
As far as I know, there's no concern for a recurrence.  I didn't have radiation and under the impression it wasn't a concern any longer.
I wish I knew the answer about having hyper symptoms.  There is a suspected auto immune disorder which makes it complicated to know the cause for various symptoms.  Joint pain, fatigue, and such are regular symptoms.    

[goolarra]

Your FT4 is well over range.  You appear to be overmedicated.  

Your doctor should also be testing FT3.  FT3 is the test that correlates best with symptoms.  FT3 is very important because it's the only form of the thyroid hormones your body can use directly.

Do you have hyper symptoms?  Is your doctor trying to keep your TSH very low to minimize the possibility of recurrence?

[my2eyes]

My FT4 was 2.3 (range 0.8-1.8 ng/dL)
It was 1.8 the two times before.

I take levothyroxine 175mcg

Thank You.

[goolarra]

What's the reference range on your FT4?  Ranges vary lab to lab, so you have to post both together.

Which meds do you take?

Do you have wither hypo or hyper symptoms?