So my doctor wants to test my thyroid function once more as TSH 3.5 (0.4-4.0) and ft4 10 (10-25) is not good, but not bad enough for start trial of levo. I do understand its the ground rules and my doctor cannot prescribe based on my previous levels that was tested in different hospital. (TSH slowly increasing since last August and ft4 rock bottom, not budging at all)
So I was tested two weeks ago (27th Feb) and she said that I can book lab when I feel doing so four to six weeks from now. She said that she wants to have that certain gap between testing so we could see TSH would rise above 4 which is the limit for her to safely prescribe levo regardless of rock bottom ft4 and symptoms.
Ofc I am keen to have it tested four weeks from now meaning 6 weeks between testing. Is it enough if we assume TSH would continue increasing? I had myself tested privately 5 weeks before 27th Feb when TSH was 3 and ft4 10.
My other concern is that as I was put on high vit D and iron to improve D and optimize iron , does it have impact on thyroid levels? My ferritin and iron were slightly low, not anemic and nothing dramatic, but low enough to get ferritin (and vitamin D) retested end of May.
It concerns me as the doctor has their hands tied and cannot go just by low ft4 even though I am symptomatic. I know I have to take vit D and iron and cannot skip them just to see what happens to my thyroid levels.
If I am not making sense, I am sorry I am ridiculously sleepy, it was awful weather to drive and it was very consuming.