Hello, I have spent some time here reading other posts but am fairly new and would really appreciate advice and any thoughts.
On the 18th Jan 2018 my thyroid blood results were:
Free T3 7.5 pmol/L 3.1 - 6.8 (HIGH)
Free Thyroxine 20.4 pmol/L 12 - 22
TSH 2.12 mIU/L 0.27 - 4.2
Ferritin 17.2 ug/L 30 - 400 (LOW)
(I have only recently found that Ferritin is related to the thyroid so this was totally overlooked. I plan to retest Ferritin soon and read up on it)
I decided to test myself because I was showing the following signs and symptoms:
Mild depression, emotional instability, insomnia, difficulty getting out of bed, no libido, memory lapses, brain fog, poor appetite, poor sense of wellbeing, slightly low oral body temperatures.
Clearly my T4 and T3 were high but my symptoms seemed to point to hypothyroidism. I interpreted this as having high rT3 and made the decision to take T3 at 50mcg per day for about 15 weeks to attempt to reduce rT3.
Upon beginning T3, my symptoms improved a lot. All the symptoms mentioned above apart from no libido were more or less gone or greatly improved in the first few weeks. My main hopes were to bring back libido but unfortunately there was little difference in that area. I came off T3 in hopes that my rT3 would be cleared and that I would remain symptom free. As expected I did feel worse for a while but then improved. Improvement took longer than expected. This was during summer.
I am now doing alright. I have just started my first full time job and expected to be very tired but that doesn't seem to be the case. I am not depressed either.
I am not symptom free however; I am having trouble with memory and brain fog which is making things quite difficult at my job, appetite is low, so are temperatures and libido is practically gone.
I got another blood test:
15th November 2018
TSH 1.69 mIU/L 0.27 - 4.2
Free T3 6.62 pmol/L 3.1 - 6.8
Free Thyroxine 19.7 pmol/L 12 - 22
Reverse T3 19 ng/dL 10 - 24
Reverse T3 ratio 22.68 15 - 75
This test has confused me. I don't know a whole lot about rT3 numbers but they are lower than I had expected which puts my theory, that rT3 was the cause of high T3/T4 with hypo symptoms and TSH higher than one, into question. I had planned on taking T3 again but am unsure about this now.
Thank you for reading. I would be grateful for any advice or knowledge about what the problem might be, things I have overlooked and whether my plans to take T3 again should be avoided.