Hi, I had a total thyroidectomy 9 years ago and have been on 175mcg levothyroxine ever since with no problems or changes needed.
I’ve noticed recently that I am having the same symptoms i had prior to being diagnosed with hyperthyroidism hence the thyroidectomy.
Can the thyroid levels change after this length of time or is it likely to be something not related.
Last blood test was 18m ago and I can get another for 5 wks due to current conditions.
Any help appreciated.
Not had any brand change in levothyroxine?
Many people find different brands are not interchangeable
Levothyroxine requires good vitamin levels
B12 level tends to drop as we age
For full Thyroid evaluation you need TSH, FT4 and FT3 tested. Also EXTREMELY important to test vitamin D, folate, ferritin and B12
Low vitamin levels are extremely common, especially if you have autoimmune thyroid disease (Hashimoto's) diagnosed by raised Thyroid antibodies
Ask GP to test vitamin levels
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)
Is this how you do your tests?
Private tests are available as NHS currently rarely tests Ft3 or thyroid antibodies or all relevant vitamins
List of private testing options
thyroiduk.org/getting-a-dia...
Thriva Thyroid plus antibodies and vitamins By DIY fingerpick test
Thriva also offer just vitamin testing
Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins by DIY fingerprick test
bluehorizonbloodtests.co.uk...
If you can get GP to test vitamins then cheapest option for just TSH, FT4 and FT3
£29 (via NHS private service ) and 10% off if go on thyroid uk for code
I was hyper , had RAI and am now hypo. I can say that I have experienced the same symptoms as I had when hyper when I am undermedicated hypo. So you may be over or undermedicated. Only blood test can tell.
Why might things have changed? Your vitamin levels may be low meaning things are working less efficiently. Your gut may be working differently - change of diet, something different - so absorption of levo is different. The liver is an important organ in all this too so any problems there?
Is there anything that I can do to ease the daily Irratic Symptoms after Total Thyroidectomy 
TSH level increase after total thyroidectomy(8 years ago)
Fatigue after thyroidectomy
Hyperthyroid 14 years after thyroidectomy
T3 after completion thyroidectomy
