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whats happening

  Have been hypothyroid for 18 years taking .3 eltroxin .My Dr. gradually reduced the eltroxin to .1  10 August 2012 TSH 18.83 Free T4 25.5  was referred to  {endocrinology} he changed my eltroxin rx from .1  to .15 and said see me in 6 months, and then maybe I will give you cortisol.  On 08 March 2013 TSH 9.24 Free T4 28.3  My Family Dr. {a General Practicioner} told me to stop taking thyroid rx all together. We than discussed the possibility if I can afford it of going to a private MRI clinic out of province. He says he has never seen this before and suspects the possibility of a pituitary adenoma. Here in Saskatchewan Canada the M.R.I. wait is nearly 2 years and as far as thyroid specialist the wait is long amongst the worst in Canada .{well over a year}
I am now worried about stopping my eltroxin and am obviously now hyperthyroid yet not losing weight and get easily out of breath physically tired and latley headaches  , and I perform a physically  dangerous and technical job .
Can someone relate to this or tell me a similar situation.I have been off eltroxin 4 days.
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Avatar universal
  Thakyou for reply the cause of my hypo is hereditary, a ultrasound revealed a healthy undersized thyroid will ask about T3
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Avatar universal
A pituitary adenoma or other pituitary issue is a possibility, but I think there are less expensive/more readily available tests that I might jump to before self-paid MRI.

The very first thing I'd test is FREE T3.  T4 is the "storage" form of the thyroid hormones.  Before it can be used by cells, it must be converted to T3, the "active" form.  Some people convert slowly, and even though their FT4 levels are adequate (sometimes even high) and can cause hyper symptoms, they remain hypo due to low FT3 levels.  Low FT3 can also make your TSH rise.  Perhaps your doctor would add FT3 to the tests planned for next week???

Also, do you know the cause of your hypo?  Have you ever had antibody tests?  
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Avatar universal
Reference range is Free T4 9.0   19.00  pmol/L
                                 TSH  0.35    5.00    mih/L
Have not had T3 tested had serum tests done and acth  am going for another acth and growth hormone test on Monday.
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Avatar universal
What's the reference range on your FT4?  Ranges vary lab to lab, so you have to post them with results.

Has anyone ever tested FT3???
Helpful - 0
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