Hello. A few months ago, I started the following thread:
http://www.medhelp.org/posts/Thyroid-Disorders/Increase-in-Levothyroxine-Dosage--Decrease-in-Free-T4/show/1242202
Now, I have some updated information.
First, I will summarize the above thread. I am a 36-year-old male. In July 2009, I was
diagnosed with hypothyroidism. I was given levothyroxine. From July 2009 until February
2010, my hypothyroidism symptoms were getting better. In February 2010, my symptoms
started getting worse.
In early May 2010, I saw an endocrinologist, and he ordered new blood tests and a thyroid
ultrasound. I had the blood tests in mid-May 2010, and here are the results:
TSH = 0.636, normal range = 0.350 - 5.500
FREE T4 = 1.13, normal range = 0.71 - 1.81
FREE T3 = 3.4, normal range = 2.3 - 4.2
vitamin D = 26, normal range = 32 - 100
Also, tests were run for both TG and TPO antibodies. According to the doctor, "the TG was
negative (undetectable), and the TPO antibody was 67 International unit/ml (normal <35)".
This result, according to the doctor, is "suggestive of autoimmune hypothyroidism". So,
my hypothyroidism is auto-immune in nature.
So, that is a summary of the original thread.
In early June 2010, I had the thyroid ultrasound, and here are the results:
<<<>>>
In mid-June 2010, four weeks after the last blood tests, I had more blood tests, and here
are the results:
TSH = 0.876, normal range = 0.340 - 5.600
FREE T4 = 0.95, normal range = 0.71 - 1.81
FREE T3 = 3.1, normal range = 2.5 - 3.9
As you can see, the Free T4 and the Free T3 went down significantly from four weeks
earlier. And my symptoms were worse as well. The endo switched me from levo to Synthroid.
Based on TSH, the endo was prepared to leave the dosage the same (137 mcg). However,
because of the worsening symptoms, he wanted me to take Synthroid 150 mcg for 2 days per
week (the weekend days) and Synthroid 137 mcg for 5 days per week (the weekdays). I
thought that was insufficient. I insisted that I take Synthroid 150 mcg for *3* days per
week AND that the various doses be interspersed. So, I would take Synthroid 137 mcg on
Sunday, Monday, Wednesday, and Friday, and I would take Synthroid 150 mcg on Tuesday,
Thursday, and Saturday. The endo agreed.
For the next 7 weeks, I took Synthroid under this arrangement. And my symptoms stayed bad
and maybe even got worse, both physically and mentally. Physically, I felt pain in my
feet, thighs, and arms. I felt pain when walking. Mentally, I was having some trouble
remembering things, and I made some mental lapses. Also, I felt increasing anger.
In early August, I took some blood tests, and here are the results:
TSH = 0.412
Free T4 = 0.93
Free T3 = 3.2
The Free T4 has declined even more, and the Free T3 has gone up only slightly. Obviously,
I feel that the Synthroid dosage has to be increased.
I was given these blood-test results by the endo's nurse, and she says that the endo
recommends that my Synthroid dosage stay the same. I have not yet been able to reach the
endo himself. I was able to reach my primary doctor, and I explained the situation to
him, but he believes that the TSH shows normal thyroid-hormone levels. The primary doctor
believes my physical and mental symptoms may be a result of other problems (kidney,
liver, psychiatric, or neurologic), and the primary doctor wants to examine my symptoms
and run tests.
Also, in my May visit with the endo, the endo also mentioned the possibility of something
other than hypothyroidism causing my symptoms. The endo stated that, if the TSH is low
and my symptoms persist, then I may have to see a rheumatologist.
So, what is going on here? Are my doctors too focused on TSH and not paying enough
attention to the Free T4 and Free T3 levels? Should I find new doctors?
Or is it really true that my symptoms are caused by something other than hypothyroidism?
Please help. Thanks.