Tsh 6.55, currently on 125 t4. Gp letting me decide how much to go up. I was slightly over replaced and getting symptoms about a year ago. Periods returned sporadically after a dose drop and I’ve not been able to get it under control since.
At Xmas tsh was about 2.5 in 125 and I wasn’t feeling great. I’m surprised it’s that much but I’m wondering if it’s because my cycle has now fully returned.
My gut says 25 BUT that would be the highest I’ve ever been on. We’ve settled on 125 x 3 and 150 x 4, because I used to be on that pre children. But I’m now worried it’s not enough.
I definitely don’t want to be over replaced again though. Around 1 would be ideal!
Any thoughts? I’m lucky not to need t3 as long as I can get it balanced!
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haggisplant
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With TSH that high, I'd be increasing Levo by 25mcg and retesting in 6-8 weeks. But please don't make the mistake of dosing by TSH, it's not a thyroid hormone, the FT4 and FT3 are thyroid hormones and these are what's important, were these tested this time?
Most people need FT4 and FT3 in the upper part of their reference ranges (if that is where they feel well). It's over range FT3 that means we are overmedicated.
T4 and t3 not tested as the Gp did it. I can’t afford a private test unless it’s absolutely necessary. Was delighted vit d was tested, I’m taking 3000-5000 plus vit k a day as breastfeeding.
Essential to regularly retest vitamin D, folate, ferritin and B12
These need to be optimal
What vitamin supplements are you currently taking
Suggest you increase as you suggested and get FULL Thyroid and vitamin testing in 6-8 weeks
Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and before eating or drinking anything other than water .
Last dose of Levothyroxine 24 hours prior to blood test. (taking delayed dose immediately after blood draw).
This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)
If/when also on T3, make sure to take last third or half of daily dose 8-12 hours prior to test, even if this means adjusting time or splitting of dose day before test
Is this how you do your tests?
Private tests are available as NHS currently rarely tests Ft3 or thyroid antibodies or all relevant vitamins
Do the 25 and keep checking in how you feel. Childbirth places a stress on thyroid so that’s probably why you need that increase. It was after my second child I finally got my diagnosis after nearly passing out behind the wheel!
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Too much levothyroxine? 
How long do it take to drop the tsh level?
How much to tell gp!
Fluid retention hypothyroidism - how to reduce
racing pulse 
