I am female, 39, British Asian and have had a treated underactive thyroid for 8 years.
Last winter I felt cold, tired, tingly tongue and extremities and dry skin. I was also preparing to get pregnant. An endocronologist increased my levo dose to 75mcg from 50 and tried to get me to a TSG dose of 2.5. I also took Vit D, B and iron. By summer last year and I was feeling much better but over winter I felt all the symptoms again. They've inproved a little recently so I wonder if it's linked to the seasons or whether I'm within range but still too low? We are still trying to conceive but I'm not yet pregnant.
My recent blood tests are below, all within range except cholesterol (history of heart disease in family although I exercise and eat well). Any thoughts?
T4 17.2 pmol/L (range 10.3 to 24.5)
TSH 2.75 (range 0.4 to 5.5)
Ferritin 44 ug (range 13 to 150)
Folate (have been taking folic acid) >20.0 ug (range 3.9 to 26.8)
B12 1382 ng (range 197 to 771)
Vit D 69.6 nmo (range 50.0 to 120.0) Note I am Asian with mid brown skin.
Cholestorol is 6.5 (range 3.0 to 5.0)
There are other tests for liver function, electroloytes, full blood count, blood pressure and bone profile, all within range.