Hello all,
I am new here and am hoping for some more experienced/knowledgeable members to be able to provide a bit of insight.
To cut a (very) long story short, I have been unwell for some time now and particularly in the past few months. Many investigations and referrals have led me to a point where multiple thyroid nodules and a cyst have been found. I am told that these appear benign on ultrasound. In addition, my FT4 and FT3 (when done, usually just FT4 in most cases) have been steadily rising over time. From being 13.0 in 2014, my FT4 levels have increased - first gradually and then more steeply - to a high of 24.3 at the moment. As this has been a uni-directional change, I suspect that it would only be higher if now tested again (this result is from around 6 weeks ago).
Given that my symptoms persist and have been getting progressively worse, the GP agreed to try some treatment to see if this would help, starting with a low dose of levothyroxine (25mg) to be reviewed in 28 days with a view to seeing an endocrinologist if there is no improvement. My concern is that my understanding is this drug is used to treat hypothyroidism when my symptoms and test results appear to point more to hyperthyroidism or a receptor problem. However, I am aware that I am new to all this and there may be factors of which I am not aware.
My results are as follows:
PRIVATE TESTS FROM MAY 2018:
TSH - 1.7mIU/L [0.27 - 4.20]
FT4 - 21.9pmol/L [12.00 - 22.00]
Total T4 - 118nmol/L [59.00 - 154.00]
FT3 - 6.46pmol/L [3.10 - 6.80]
Thyroglobulin Antibody - < 10 IU/mL [0.00 - 115.00]
Thyroid Peroxidase Antibodies - 16.2IU/mL [0.00 - 34.00]
NHS TESTS FROM END OF SAME MONTH
TSH - 1.17 mu/L [0.2 - 5.0]
FT4 - 24.3pmol/L [10-24]
It is worth noting that I was asked to fast and the private tests done first thing in the morning. This has not been the case with any NHS tests. Also, prior to this year my TSH was always less than 1.0 (usually 0.9ish).
My question is whether levothyroxine is suitable treatment for a possible thyroid disorder with the above results. I am no expert but it seems as though I am being given more of the hormone which is present in excess. I have looked and looked online and cannot find anything to suggest that levothyroxine might be used in cases of raised T4. I'm considering telephoning the GP to query this but don't want to seem a fool. Is there something I am missing in this picture? She did mention that it might prevent the nodules from growing. Is this the case?
Any advice anybody can offer on this is greatly appreciated. My main worry is that these tablets might make me more ill!
Tem
P.S. Apologies for the length of this post. I just wanted to be as clear as possible.