Through advice from the lovely people here I took a blood test with Blue Horizon.
I had a TT 16 years ago. Been taking T3 for 3 weeks, starting with two 5mcg doses, now on a 10 and a 5. Ferritin and anti-thyroglobulin both high and indicated in red on the test report.
Biochemistry
CRP 0.60. (<5.0)
Ferritin 204. (20-150). High
Thyroid function
TSH. 0.31. (0.27-4.2)
T4 total. 87.5. (64.5-142)
Free T4 16.54. (12-22)
Free T3 5.21. (3.1-6.8)
Immunology
Anti-thyroidperoxidase abs. 23.5. (<34)
Anti-thyroglobulin abs 1642. (<115)
Vitamins
B12 355. (Deficient <140; insufficient 140-250. Consider reducing dose)
Serum folate 27.71. (10.4-42.4)
Baffled by the anti-thyroglobulin.... Many thanks