I have just came across an old letter from rheumatology. From Aug 2018 where 6 monthly thyroid checks are recommended. They haven't been done by the gp since then and I completely forgot all about it. I think rheumatologist requested it due to the high tpo antibodies which were >1000 at the time.
I have been doing blue horizons tests every 4-5 months which is quite expensive. So hoping now when the surgery opens up to blood tests then my Dr will do the tests. I know it's only the basic tests and will get the full panel done privately maybe not quite as often as it's getting too dear now.