Simple , but still , I'm a bit anxious . Ok , I'm using T4 and sometimesT3(if I can't find T4) with my TrT ... Heared so many story of people telling me my thyroid will be ****ed forever ... I did it in the past , but without testosterone TrT and many years passed before I get this TrT ... I don't want to lose this TrT , so : How long when you stop using T4 or T3 before your thyroid comes back to normal ?????????