Thyroid medication causes TSH to drop, and thus reduces output of natural thyroid hormone. Since serum thyroid levels are the sum of both natural thyroid hormone and any thyroid medication, only when TSH is suppressed below range, and no longer stimulating the thyroid gland, will further increases in thyroid med start to raise your FT4 and FT3 levels as needed to relieve hypothyroid symptoms.
You are not quite there yet, but note that taking significant thyroid med in only one or two doses daily, as compared to a continuous low flow of thyroid hormone in the untreated state, has been shown to cause suppression of TSH. A suppressed TSH when taking thyroid medication should never be diagnosed as hyperthyroidism, unless there are hyperthyroid symptoms due to excessive levels of FT4 and FT3.
As TSH becomes suppressed by the daily dose of thyroid med, the output of natural thyroid hormone is stopped, and the patient will thus need a full daily replacement amount of thyroid hormone from thyroid medication. Since the average normal secretion for euthyroid humans are 94-110 mcg of T4 and 10-22 mcg of T3 daily, that means the average person will need at least 2 grains (120 mg) of desiccated thyroid med, plus an additional amount to account for losses due to absorption being less than 100%. Also, everyone is different in their need for thyroid hormone. So you can see that you are a long way from being on an adequate dosage of medication. This is further evident from your symptoms.
You can find all this info in the paper you previously downloaded and gave to your doctor.
UPDATE:
I got my test results a few days ago and my FT4 is still too low. My FT3 is "normal" but it's still very low. I don't get it. My dose was recently upped to 60 mg desiccated thyroid. Why are my levels getting worse? Shouldn't they be getting better? I do feel better.
TSH 1.10 (0.3-5)
FT3 3.6 (3.4-5.9), bottom 8.6%
FT4 9 (12-20) L
I didn't take my medication the day I went in for blood work (I waited 27 hours).
Symptoms:
Nausea (this one's new but it's getting better)
Slow metabolism (I gain weight a lot faster than I used to, but it's significantly better than it was 2-3 months ago)
Mild to moderate memory problems, depending on the day (significantly better than 2-3 months ago)
Dry skin
I sleep slightly more than I used to.
I recently had labs done. Here are the results:
TG: <20 (Ref < 40) Negative this time.
TPO: 770 H (Ref <40) This antibody always comes back high
TSH: 0.5 (ref 0.35-5.0) how is my TSH so low if my thyroid is failing? It should be 20.
FT3: 3.2 L (ref 3.4-6) that’ll explain the weight gain
FT4: 11 L (ref 12-22) that’ll explain the weight gain
Ferritin: 31 (ref 12-109) I’m taking a supplement
I’m on desiccated thyroid (30 mg). I didn’t take it the morning I did the labs (I waited for 26 hours).
My Tg came back negative this time. I’m glad it went back back down but is it normal for the Tg to fluctuate like this? It was positive a month ago.
My TPO basically doubled over the past month. Is this bad?
My FT3 and FT4 are officially too low for the first time ever (overt hypo). Now I know why I put on 10 lbs in 1 month. What’s interesting is that I feel relatively ok. Other than the weight gain and crawling metabolism, most of my hypo symptoms are nearly gone.
I think I finally figured out why I was still having symptoms when my FT3 was close to the middle of the reference range. Turns out that the lab changed the reference range. The low end was changed from 3.1 to 2.6 (most labs have it around 3.5!). I was having horrible symptoms at 3.5 so no, this new reference range doesn’t work Life Labs!
http://www.btf-thyroid.org/information/quick-guides/97-thyroid-function-tests
Based on the reference range they were using before my FT3 was at 16%. It’s better than the 12% I was at before but still significantly lower than the 30% I thought my levels were at. This time I went to a clinic that works with a different lab and surprise surprise my FT3 is really low again (this time it's out of range).
https://thyroidpatients.ca/2019/01/06/abbott-laboratories-reference-range-normalizes-lower-free-t3/
Question: is it possible you are pregnant?
Also b12 needs to be at least 700 if not 900 for many to feel well. So the range in the usa is wide and the lower part of the range is ridiculously low. So what was your actual b12 level?
Based on you preciois lab reaults it may make sense to further supplement with synthetic T3to get your free T3 level up. If your most recent tests show a similar trend.
That would be my opinion anyhow.
Overtraining can precent T3 from
Entering the cells. Even if T3 is in the blood . Over trainig can also increase cortisol.
My mom recently went hatd core keto diet. She lost weight initially and then nothing. She INCREASED her fat intake and water. Increased calories and LOST weight!
Just proves that calorie counting simply is not as clear cut way or just doesn’t always work.
Jenn1302 , do you have new results?
can you please post what your results are, my antibodies went up too on ndt.