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Old 05-28-2010, 05:54 PM   #1
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Angry Help! TSH undetectable at 30w pregnancy!

You may remember me as a 29-year-old woman and 30 weeks pregnant. I went for my lab without medication this morning. My endo called me this afternoon telling me my TT3 and FT4 are still normal.But my TSH is undetectable (I guess it means 0). Having my synthroid dosage lowered for 3 months from 75 to 59, my TSH isn't responding. As for T3 and T4, they have been normal all the time, even when my TSH was found a little high when I was 5 weeks pregnant. Now my endo wants me to stop medication completely for 3 weeks and go back have another bloodwork. I still remember he refused to lower my dose rapidly because he thought that would make my TSH way off. Now he's saying I should stop it completely. Does this make sense? Won't this affect my TSH even more? I don't know what the hell is going on with my thyroid and I don't know if I should switch to another endo. My TSH has never been normal during my pregnancy. Will this affect my baby? I can't stop worrying.

 
Old 05-28-2010, 11:32 PM   #2
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Re: Help! TSH undetectable at 30w pregnancy!

Do you have those free T levels? Are you having other symptoms than that high resting heart rate? These are important, not just TSH. Have you ever been tested for thyroid antibodies? It's possible your thyroid has started to work more because of the pregnancy but I would not recommend going off meds unless you are clearly hyperT with obvious HyperT symptoms.

Last edited by FinnMaid; 05-29-2010 at 12:28 AM.

 
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Old 05-29-2010, 12:50 PM   #3
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Re: Help! TSH undetectable at 30w pregnancy!

I don't have the latest Free T4 and Total T3 at this time. My endo just left me a message and said they are still normal. I expect to receive the lab result in 2-3 days. I'll keep you updated then. Yes, they tested my antibodies the first time I went to see the endo. Thyroid PER AB <10 (0-35), THYROGLOB. AB <20 (0-40). My endo stated that thyroiditis tests were negative. Although I don't feel comfortable keeping taking synthroid long time ago, I don't feel right to stop it completely now either. Why is it so hard to treat a subclinical hypo patient like me? I thought it should be easy.

 
Old 05-29-2010, 12:53 PM   #4
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Re: Help! TSH undetectable at 30w pregnancy!

As for symtoms other than fast resting pulse, I feel my joints are kinda numb. I feel strange when making a fist. My knees feel uncomfortable when I bend over. It's not easy for me to tell if these are related to pregnancy in 3rd trimester or thyroid problem.

 
Old 05-29-2010, 01:43 PM   #5
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Re: Help! TSH undetectable at 30w pregnancy!

If you were truly overmedicated I'm sure you would have other obvious signs than the fast heart rate (which could be due to pregnancy too). Not sure but could your joint issues be because of the effects pregnancy has on your joints - they'll "loosen up" also in your pelvis to make giving birth easier. Treating HypoT usually is easier - it's not that common to have a suppressed TSH with such low dose as yours, if I remember correctly your actual thyroid levels haven't been that high either.

Last edited by FinnMaid; 05-29-2010 at 01:45 PM.

 
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