Hoping someone can help me to make sense of this and to see if I am worrying unnecessarily.
I have been TTC for 4 months with no luck, which I know isn't long. 2 years ago I was told I had subclinical hypothroidism (TSH 5.5) and other results normal. I did a private test about 3-4 weeks ago and TSH was 4.49.
I asked GP for advice and they ordered full thyroid tests. Results have come back with TSH 2.45 and GP said antibodies were normal, T4 was 19. The two tests were only about 2-3 weeks apart.
I have been spotting for up to a week before my period for years which is what prompted these tests - GP said this is probably just normal for me although did agree to make a referral to a menstrual disorder clinic to confirm. I have had hormone tests before and an ultrasound.
I do have some potential thyroid symptoms - nothing major though, dry skin and hair, some difficulty losing weight (but do have healthy BMI), and a short cycle (23/24 days, max 26).
Wondering why my thyroid would have resolved within a short time frame? I have started taking a new pre-conception vitamin (proceive) but had been taking another brand before this. I also didn't take anything the morning of the test and only started the proceive 3 weeks ago.
After reading a lot about thyroid really affecting fertility and miscarriage rates I do feel worried still and wonder should I go private, or just take this as good news.
Any advice much appreciated!
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london5
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The variation in Thyroid test results could be for several reasons:-1. Time of testing. Best tested first thing in the morning, fasting as Slowdragon describes.
2. Thyroid is starting to fail but often follows a pattern of fluctuating thyroid hormone levels before hand.
3. Fluctuating level of female hormones. Adrenal, ovaraies and thyroid organs are all in a loop.... Differing levels of one can influence levels of another as thry compensate for each other.
4. Fluctuating level of thyroid antibodies.... as per Slowdragon description. You can get tested for the other type of thyroid antibody test privately.
Thank you so much! I did do the test pretty much first thing (10am) and it was fasted. Yes the GP is aware that I'm trying for a baby. He said because the results are now normal there's nothing to worry about and to keep trying. I have just been reading about how biotin can affect thyroid results, and biotin is in the preconception vitamin I had just started taking about two weeks before the test,so think I will go back and mention this.
Ah yes. Biotin will affect thyroid blood test results. Can give false high or low. He/she will need to repeat. Stop your biotin for a week before test. Technically it's three-four days but a week will make sure it's clear from your system. Your thyroid results need to be optimum for pregnancy. Make him aware of this too. No bumping of ft4, or Ft3 along the bottom of the ranges.
Thank you! Unfortunately they are already aware, think I might consider going to a private doctor as I really haven't felt listened to and haven't had enough time to speak with them.
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