I am a little confused - I thought my thyroid has been underactive (I have been taking Levothyroxine for over 20 years), I don't have goitre, but someone told me I could have an over active thyroid - can some one explain the difference please, and can someone who takes thyroxine be either - under active or over active?
These were my last blood test results in Nov last year.
TSH level - 2.81 miu/L 0.20-6.00miu/L
Vit D 63 nmol/L 75-150 nmol/L
Vit B12 625 ng/L 180-910ng/l
Folate 8.3 ug/L 5.40-24.00ug/L
Ferratin 51 ug/L 10.00-291.00ug
Corrected Calcium level 2.28 mmol/L 2.15-2.60mmol
My TSH in Jan this year was 1.33