Hi, I asked a similar question some time ago and I believe the consensus was that I'm not converting T4 well. So I'm here probably to express frustration.... My endocrinologist won't test free T3 for some reason. I went to a gp recently because I'm losing weight. He tested among other things, T4, total T3 and TSH. On this occasion my free T4 is slightly above the reference. It is 1.73ng/dl.Should be less than 1.72. I had thyroid cancer nearly 5 years ago so the idea is to suppress TSH. Oddly it remains "normal" and is currently 2.79 mcUI/mL and in March had peaked at 6.08. Before then it was closer to 0.5. Total T3 is 69 (ref. 60-181ng/dL) at its lowest and steadily declining since 2019.
My cholesterol has been rising. Started taking statins last year and this had it under control but now it is high again. Lipoprotein a was always around 50 (ref.is below 30) but has risen consistently since the cancer and is now 90. Blood pressure also rose but I'm taking medication and it's under control.
I have very bad insomnia and I feel I'm more anxious.
Not really sure of what to do,so if anyone has suggestions, please let me know.Am meant to see the endocrinologist in two weeks but have surgery for spegalian hernia in one week. Hopefully I can keep the appointment. I suspect she will reduce the T4 dose.
my weight loss is probably due to sulfasalazine which I have been taking since the beginning of the year for psoriatic arthritis.
Thanks!
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acousmetre
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On this occasion my free T4 is slightly above the reference. It is 1.73ng/dl.Should be less than 1.72. I had thyroid cancer nearly 5 years ago so the idea is to suppress TSH. Oddly it remains "normal" and is currently 2.79 mcUI/mL and in March had peaked at 6.08.
Do you ALWAYS test thyroid levels early morning, ideally before 9am and last dose levothyroxine 24 hours before test
You need TSH, Ft4 and Ft3 tested together
Anxiety is common hypothyroid symptom
Most people when adequately treated will have TSH below one
After thyroid cancer, likely TSH should be below range
Important to test vitamin D, folate, ferritin and B12
Hi, yes, always between 6:30 and 7 Am. I don't take any tablets before the blood test or eat anything. I also take euthyrox when I first wake up usually 5AM, by itself, and eat only after a half hour wait. I take the other medications after breakfast. These include a statin, a blood pressure tablet ("aval", I forgot the full name), bupropion (taking this for some years now) and since January, sulfasalazine. Perhaps it's this last one that's interfering but I've not found any information to say it does. It is known to have lots of collateral affect of which loss of appetite is one. I'm not taking any vitamins presently. Perhaps I should. My vitamin D was tested and was towards the lower end of the reference range. B12 result hasn't come back yet but I think it was tested. Usually it's ok. Ferritine and folate not tested.
89Kg, 187cm. 175mcg Monday-Thursday, 150mcg Friday-Sunday. I was advised to wait 1/2 an hour before eating anything or drinking coffee, etc, which I do. Vitamin D was 34ng/ ml (ref. above 20. "People at risk": 30-60). My TSH only started to go haywire in March where it jumped to 6. Before that, since starting treatment in 2017, it was always suppressed. The thing that has changed is sulfasalazine, which I started taking in January or February.
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High TSH with Low T3 & T4
Hypothyroid questions, low t4, normal TSH, normal t3. 
Mega low TSH normal T4 & T3
