I've been taking Tiromel for almost a year now and have started to notice my thyroid symptoms creep back. I think one of the newer batches I am using might be weak but i dont know how to tell for sure. My Free T3 was low when testing, which is quite concerning when i'm on 62.5mcg tiromel & one naturethroid tablet per day.
The batch I did well on was 18K097, but the batch I think is weaker is 17K633 - how would I go about checking this? I am not sure whether to up my dose and test again in 6 weeks, or whether to try a new batch on the same dose. Can anyone help?