What is your SHBG now ?Many years ago I was dosing 100mcg of T3 daily to get my high RT3 down. I did this for 12 weeks and while doing so it raised my SHBG to 80. This was pre TRT for me. Once I stopped and went back to my regular dose of 25mcg daily my SHBG went back to normal. So yeah huge amounts of T3 can do this. But with my regular dose of 25mcg daily, my FT3 is at the very top of range and my SHBG is normal mid range. But everyone is different.