Is it just a case of reducing T4 and seeing how you get on?
I've been on T4 for 4 years and just continued to decline, recently added in T3 and hey presto life in the old dog yet!
Another post mentioned kidney pain whilst over medicated with T4 which I have, so was thinking I'll start to lower the T4...
Last test result 17.5 (12-22) 21.11.22 having been using T3 for 4 months had been at 21.7 (12-22) before starting T3, I've not changed the dose.
Any experiences to share would be very welcome